diff --git a/appengine/README.txt b/appengine/README.txt index f91e2d86a..6ad341cb1 100644 --- a/appengine/README.txt +++ b/appengine/README.txt @@ -30,6 +30,7 @@ blockly/ |- blocks_compressed.js |- dart_compressed.js |- javascript_compressed.js + |- php_compressed.js `- python_compressed.js Instructions for fetching the optional Closure library may be found here: diff --git a/blockly_compressed.js b/blockly_compressed.js index f3da0649b..486ea4450 100644 --- a/blockly_compressed.js +++ b/blockly_compressed.js @@ -1204,8 +1204,9 @@ Blockly.Generator.prototype.valueToCode=function(a,b,c){if(isNaN(c))throw'Expect Blockly.Generator.prototype.statementToCode=function(a,b){var c=a.getInputTargetBlock(b),d=this.blockToCode(c);if(!goog.isString(d))throw'Expecting code from statement block "'+c.type+'".';d&&(d=this.prefixLines(d,this.INDENT));return d};Blockly.Generator.prototype.addLoopTrap=function(a,b){this.INFINITE_LOOP_TRAP&&(a=this.INFINITE_LOOP_TRAP.replace(/%1/g,"'"+b+"'")+a);this.STATEMENT_PREFIX&&(a+=this.prefixLines(this.STATEMENT_PREFIX.replace(/%1/g,"'"+b+"'"),this.INDENT));return a}; Blockly.Generator.prototype.INDENT=" ";Blockly.Generator.prototype.addReservedWords=function(a){this.RESERVED_WORDS_+=a+","};Blockly.Generator.prototype.FUNCTION_NAME_PLACEHOLDER_="{leCUI8hutHZI4480Dc}";Blockly.Generator.prototype.provideFunction_=function(a,b){if(!this.definitions_[a]){var c=this.variableDB_.getDistinctName(a,this.NAME_TYPE);this.functionNames_[a]=c;this.definitions_[a]=b.join("\n").replace(this.FUNCTION_NAME_PLACEHOLDER_REGEXP_,c)}return this.functionNames_[a]}; // Copyright 2012 Google Inc. Apache License 2.0 -Blockly.Names=function(a){this.reservedDict_=Object.create(null);if(a){a=a.split(",");for(var b=0;bd?1:c + diff --git a/demos/code/code.js b/demos/code/code.js index 109378278..d0727fee3 100644 --- a/demos/code/code.js +++ b/demos/code/code.js @@ -243,7 +243,7 @@ Code.LANG = Code.getLang(); * List of tab names. * @private */ -Code.TABS_ = ['blocks', 'javascript', 'python', 'dart', 'xml']; +Code.TABS_ = ['blocks', 'javascript', 'php', 'python', 'dart', 'xml']; Code.selected = 'blocks'; @@ -324,6 +324,14 @@ Code.renderContent = function() { code = prettyPrintOne(code, 'py'); content.innerHTML = code; } + } else if (content.id == 'content_php') { + code = Blockly.PHP.workspaceToCode(Code.workspace); + content.textContent = code; + if (typeof prettyPrintOne == 'function') { + code = content.innerHTML; + code = prettyPrintOne(code, 'php'); + content.innerHTML = code; + } } else if (content.id == 'content_dart') { code = Blockly.Dart.workspaceToCode(Code.workspace); content.textContent = code; diff --git a/demos/code/index.html b/demos/code/index.html index 9b3b22c56..2a42aa617 100644 --- a/demos/code/index.html +++ b/demos/code/index.html @@ -10,6 +10,7 @@ + @@ -36,6 +37,8 @@   Python   + PHP +   Dart   XML @@ -61,6 +64,7 @@ 

+  

   

   

   
diff --git a/demos/index.html b/demos/index.html
index fafcb1963..8af600662 100644
--- a/demos/index.html
+++ b/demos/index.html
@@ -168,7 +168,7 @@
       
       
         
Code Editor

-        
Export a Blockly program into JavaScript, Python, Dart or XML.

+        
Export a Blockly program into JavaScript, Python, PHP, Dart or XML.

       
     
 
diff --git a/generators/php.js b/generators/php.js
new file mode 100644
index 000000000..8155607b9
--- /dev/null
+++ b/generators/php.js
@@ -0,0 +1,187 @@
+/**
+ * @license
+ * Visual Blocks Language
+ *
+ * Copyright 2015 Google Inc.
+ * https://developers.google.com/blockly/
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @fileoverview Helper functions for generating PHP for blocks.
+ * @author daarond@gmail.com (Daaron Dwyer)
+ */
+'use strict';
+
+goog.provide('Blockly.PHP');
+
+goog.require('Blockly.Generator');
+
+
+/**
+ * PHP code generator.
+ * @type !Blockly.Generator
+ */
+Blockly.PHP = new Blockly.Generator('PHP');
+
+/**
+ * List of illegal variable names.
+ * This is not intended to be a security feature.  Blockly is 100% client-side,
+ * so bypassing this list is trivial.  This is intended to prevent users from
+ * accidentally clobbering a built-in object or function.
+ * @private
+ */
+Blockly.PHP.addReservedWords(
+        // http://php.net/manual/en/reserved.keywords.php
+    '__halt_compiler,abstract,and,array,as,break,callable,case,catch,class,clone,const,continue,declare,default,die,do,echo,else,elseif,empty,enddeclare,endfor,endforeach,endif,endswitch,endwhile,eval,exit,extends,final,for,foreach,function,global,goto,if,implements,include,include_once,instanceof,insteadof,interface,isset,list,namespace,new,or,print,private,protected,public,require,require_once,return,static,switch,throw,trait,try,unset,use,var,while,xor,' +
+        // http://php.net/manual/en/reserved.constants.php
+    'PHP_VERSION,PHP_MAJOR_VERSION,PHP_MINOR_VERSION,PHP_RELEASE_VERSION,PHP_VERSION_ID,PHP_EXTRA_VERSION,PHP_ZTS,PHP_DEBUG,PHP_MAXPATHLEN,PHP_OS,PHP_SAPI,PHP_EOL,PHP_INT_MAX,PHP_INT_SIZE,DEFAULT_INCLUDE_PATH,PEAR_INSTALL_DIR,PEAR_EXTENSION_DIR,PHP_EXTENSION_DIR,PHP_PREFIX,PHP_BINDIR,PHP_BINARY,PHP_MANDIR,PHP_LIBDIR,PHP_DATADIR,PHP_SYSCONFDIR,PHP_LOCALSTATEDIR,PHP_CONFIG_FILE_PATH,PHP_CONFIG_FILE_SCAN_DIR,PHP_SHLIB_SUFFIX,E_ERROR,E_WARNING,E_PARSE,E_NOTICE,E_CORE_ERROR,E_CORE_WARNING,E_COMPILE_ERROR,E_COMPILE_WARNING,E_USER_ERROR,E_USER_WARNING,E_USER_NOTICE,E_DEPRECATED,E_USER_DEPRECATED,E_ALL,E_STRICT,__COMPILER_HALT_OFFSET__,TRUE,FALSE,NULL,__CLASS__,__DIR__,__FILE__,__FUNCTION__,__LINE__,__METHOD__,__NAMESPACE__,__TRAIT__');
+
+/**
+ * Order of operation ENUMs.
+ * http://php.net/manual/en/language.operators.precedence.php
+ */
+Blockly.PHP.ORDER_ATOMIC = 0;         // 0 "" ...
+Blockly.PHP.ORDER_CLONE = 1;          // clone
+Blockly.PHP.ORDER_NEW = 1;            // new
+Blockly.PHP.ORDER_MEMBER = 2;         // ()
+Blockly.PHP.ORDER_FUNCTION_CALL = 2;  // ()
+Blockly.PHP.ORDER_INCREMENT = 3;      // ++
+Blockly.PHP.ORDER_DECREMENT = 3;      // --
+Blockly.PHP.ORDER_LOGICAL_NOT = 4;    // !
+Blockly.PHP.ORDER_BITWISE_NOT = 4;    // ~
+Blockly.PHP.ORDER_UNARY_PLUS = 4;     // +
+Blockly.PHP.ORDER_UNARY_NEGATION = 4; // -
+Blockly.PHP.ORDER_MULTIPLICATION = 5; // *
+Blockly.PHP.ORDER_DIVISION = 5;       // /
+Blockly.PHP.ORDER_MODULUS = 5;        // %
+Blockly.PHP.ORDER_ADDITION = 6;       // +
+Blockly.PHP.ORDER_SUBTRACTION = 6;    // -
+Blockly.PHP.ORDER_BITWISE_SHIFT = 7;  // << >> >>>
+Blockly.PHP.ORDER_RELATIONAL = 8;     // < <= > >=
+Blockly.PHP.ORDER_IN = 8;             // in
+Blockly.PHP.ORDER_INSTANCEOF = 8;     // instanceof
+Blockly.PHP.ORDER_EQUALITY = 9;       // == != === !==
+Blockly.PHP.ORDER_BITWISE_AND = 10;   // &
+Blockly.PHP.ORDER_BITWISE_XOR = 11;   // ^
+Blockly.PHP.ORDER_BITWISE_OR = 12;    // |
+Blockly.PHP.ORDER_CONDITIONAL = 13;   // ?:
+Blockly.PHP.ORDER_ASSIGNMENT = 14;    // = += -= *= /= %= <<= >>= ...
+Blockly.PHP.ORDER_LOGICAL_AND = 15;   // &&
+Blockly.PHP.ORDER_LOGICAL_OR = 16;    // ||
+Blockly.PHP.ORDER_COMMA = 17;         // ,
+Blockly.PHP.ORDER_NONE = 99;          // (...)
+
+/**
+ * Initialise the database of variable names.
+ * @param {!Blockly.Workspace} workspace Workspace to generate code from.
+ */
+Blockly.PHP.init = function(workspace) {
+  // Create a dictionary of definitions to be printed before the code.
+  Blockly.PHP.definitions_ = Object.create(null);
+  // Create a dictionary mapping desired function names in definitions_
+  // to actual function names (to avoid collisions with user functions).
+  Blockly.PHP.functionNames_ = Object.create(null);
+
+  if (!Blockly.PHP.variableDB_) {
+    Blockly.PHP.variableDB_ =
+        new Blockly.Names(Blockly.PHP.RESERVED_WORDS_, true);
+  } else {
+    Blockly.PHP.variableDB_.reset();
+  }
+
+  var defvars = [];
+  var variables = Blockly.Variables.allVariables(workspace);
+  for (var x = 0; x < variables.length; x++) {
+    defvars[x] = Blockly.PHP.variableDB_.getName(variables[x],
+        Blockly.Variables.NAME_TYPE) + ';';
+  }
+  Blockly.PHP.definitions_['variables'] = defvars.join('\n');
+};
+
+/**
+ * Prepend the generated code with the variable definitions.
+ * @param {string} code Generated code.
+ * @return {string} Completed code.
+ */
+Blockly.PHP.finish = function(code) {
+  // Convert the definitions dictionary into a list.
+  var definitions = [];
+  for (var name in Blockly.PHP.definitions_) {
+    definitions.push(Blockly.PHP.definitions_[name]);
+  }
+  return definitions.join('\n\n') + '\n\n\n' + code;
+};
+
+/**
+ * Naked values are top-level blocks with outputs that aren't plugged into
+ * anything.  A trailing semicolon is needed to make this legal.
+ * @param {string} line Line of generated code.
+ * @return {string} Legal line of code.
+ */
+Blockly.PHP.scrubNakedValue = function(line) {
+  return line + ';\n';
+};
+
+/**
+ * Encode a string as a properly escaped PHP string, complete with
+ * quotes.
+ * @param {string} string Text to encode.
+ * @return {string} PHP string.
+ * @private
+ */
+Blockly.PHP.quote_ = function(string) {
+  // TODO: This is a quick hack.  Replace with goog.string.quote
+  string = string.replace(/\\/g, '\\\\')
+                 .replace(/\n/g, '\\\n')
+                 .replace(/'/g, '\\\'');
+  return '\'' + string + '\'';
+};
+
+/**
+ * Common tasks for generating PHP from blocks.
+ * Handles comments for the specified block and any connected value blocks.
+ * Calls any statements following this block.
+ * @param {!Blockly.Block} block The current block.
+ * @param {string} code The PHP code created for this block.
+ * @return {string} PHP code with comments and subsequent blocks added.
+ * @private
+ */
+Blockly.PHP.scrub_ = function(block, code) {
+  var commentCode = '';
+  // Only collect comments for blocks that aren't inline.
+  if (!block.outputConnection || !block.outputConnection.targetConnection) {
+    // Collect comment for this block.
+    var comment = block.getCommentText();
+    if (comment) {
+      commentCode += Blockly.PHP.prefixLines(comment, '// ') + '\n';
+    }
+    // Collect comments for all value arguments.
+    // Don't collect comments for nested statements.
+    for (var x = 0; x < block.inputList.length; x++) {
+      if (block.inputList[x].type == Blockly.INPUT_VALUE) {
+        var childBlock = block.inputList[x].connection.targetBlock();
+        if (childBlock) {
+          var comment = Blockly.PHP.allNestedComments(childBlock);
+          if (comment) {
+            commentCode += Blockly.PHP.prefixLines(comment, '// ');
+          }
+        }
+      }
+    }
+  }
+  var nextBlock = block.nextConnection && block.nextConnection.targetBlock();
+  var nextCode = Blockly.PHP.blockToCode(nextBlock);
+  return commentCode + code + nextCode;
+};
diff --git a/generators/php/colour.js b/generators/php/colour.js
new file mode 100644
index 000000000..f04cd0cd3
--- /dev/null
+++ b/generators/php/colour.js
@@ -0,0 +1,101 @@
+/**
+ * @license
+ * Visual Blocks Language
+ *
+ * Copyright 2015 Google Inc.
+ * https://developers.google.com/blockly/
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @fileoverview Generating PHP for colour blocks.
+ * @author daarond@gmail.com (Daaron Dwyer)
+ */
+'use strict';
+
+goog.provide('Blockly.PHP.colour');
+
+goog.require('Blockly.PHP');
+
+
+Blockly.PHP['colour_picker'] = function(block) {
+  // Colour picker.
+  var code = '\'' + block.getFieldValue('COLOUR') + '\'';
+  return [code, Blockly.PHP.ORDER_ATOMIC];
+};
+
+Blockly.PHP['colour_random'] = function(block) {
+  // Generate a random colour.
+  var functionName = Blockly.PHP.provideFunction_(
+      'colour_random',
+      [ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ + '() {',
+        '  return \'#\' . str_pad(dechex(mt_rand(0, 0xFFFFFF)), 6, \'0\', STR_PAD_LEFT);',
+        '}']);
+  var code = functionName + '()';
+  return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+};
+
+Blockly.PHP['colour_rgb'] = function(block) {
+  // Compose a colour from RGB components expressed as percentages.
+  var red = Blockly.PHP.valueToCode(block, 'RED',
+      Blockly.PHP.ORDER_COMMA) || 0;
+  var green = Blockly.PHP.valueToCode(block, 'GREEN',
+      Blockly.PHP.ORDER_COMMA) || 0;
+  var blue = Blockly.PHP.valueToCode(block, 'BLUE',
+      Blockly.PHP.ORDER_COMMA) || 0;
+  var functionName = Blockly.PHP.provideFunction_(
+      'colour_rgb',
+      [ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
+          '($r, $g, $b) {',
+        '  $hex = "#";',
+        '  $hex .= str_pad(dechex($r), 2, "0", STR_PAD_LEFT);',
+        '  $hex .= str_pad(dechex($g), 2, "0", STR_PAD_LEFT);',
+        '  $hex .= str_pad(dechex($b), 2, "0", STR_PAD_LEFT);',
+        '  return $hex;',
+        '}']);
+  var code = functionName + '(' + red + ', ' + green + ', ' + blue + ')';
+  return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+};
+
+Blockly.PHP['colour_blend'] = function(block) {
+  // Blend two colours together.
+  var c1 = Blockly.PHP.valueToCode(block, 'COLOUR1',
+      Blockly.PHP.ORDER_COMMA) || '\'#000000\'';
+  var c2 = Blockly.PHP.valueToCode(block, 'COLOUR2',
+      Blockly.PHP.ORDER_COMMA) || '\'#000000\'';
+  var ratio = Blockly.PHP.valueToCode(block, 'RATIO',
+      Blockly.PHP.ORDER_COMMA) || 0.5;
+  var functionName = Blockly.PHP.provideFunction_(
+      'colour_blend',
+      [ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
+          '($c1, $c2, $ratio) {',
+        '  $ratio = max(min($ratio, 1), 0);',
+        '  $r1 = hexdec(substr($c1,0,2));',
+        '  $g1 = hexdec(substr($c1,2,2));',
+        '  $b1 = hexdec(substr($c1,4,2));',
+        '  $r2 = hexdec(substr($c2,0,2));',
+        '  $g2 = hexdec(substr($c2,2,2));',
+        '  $b2 = hexdec(substr($c2,4,2));',
+        '  $r = round($r1 * (1 - $ratio) + $r2 * $ratio);',
+        '  $g = round($g1 * (1 - $ratio) + $g2 * $ratio);',
+        '  $b = round($b1 * (1 - $ratio) + $b2 * $ratio);',
+        '  $hex = "#";',
+        '  $hex .= str_pad(dechex($r), 2, "0", STR_PAD_LEFT);',
+        '  $hex .= str_pad(dechex($g), 2, "0", STR_PAD_LEFT);',
+        '  $hex .= str_pad(dechex($b), 2, "0", STR_PAD_LEFT);',
+        '  return $hex;',
+        '}']);
+  var code = functionName + '(' + c1 + ', ' + c2 + ', ' + ratio + ')';
+  return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+};
diff --git a/generators/php/lists.js b/generators/php/lists.js
new file mode 100644
index 000000000..78d15c71e
--- /dev/null
+++ b/generators/php/lists.js
@@ -0,0 +1,371 @@
+/**
+ * @license
+ * Visual Blocks Language
+ *
+ * Copyright 2015 Google Inc.
+ * https://developers.google.com/blockly/
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @fileoverview Generating PHP for list blocks.
+ * @author daarond@gmail.com (Daaron Dwyer)
+ */
+'use strict';
+
+goog.provide('Blockly.PHP.lists');
+
+goog.require('Blockly.PHP');
+
+
+Blockly.PHP['lists_create_empty'] = function(block) {
+  // Create an empty list.
+  return ['array()', Blockly.PHP.ORDER_ATOMIC];
+};
+
+Blockly.PHP['lists_create_with'] = function(block) {
+  // Create a list with any number of elements of any type.
+  var code = new Array(block.itemCount_);
+  for (var n = 0; n < block.itemCount_; n++) {
+    code[n] = Blockly.PHP.valueToCode(block, 'ADD' + n,
+        Blockly.PHP.ORDER_COMMA) || 'null';
+  }
+  code = 'array(' + code.join(', ') + ')';
+  return [code, Blockly.PHP.ORDER_ATOMIC];
+};
+
+Blockly.PHP['lists_repeat'] = function(block) {
+  // Create a list with one element repeated.
+  var functionName = Blockly.PHP.provideFunction_(
+      'lists_repeat',
+      [ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
+          '($value, $count) {',
+        '  $array = array();',
+        '  for ($index = 0; $index < $count; $index++) {',
+        '    $array[] = $value;',
+        '  }',
+        '  return $array;',
+        '}']);
+  var argument0 = Blockly.PHP.valueToCode(block, 'ITEM',
+      Blockly.PHP.ORDER_COMMA) || 'null';
+  var argument1 = Blockly.PHP.valueToCode(block, 'NUM',
+      Blockly.PHP.ORDER_COMMA) || '0';
+  var code = functionName + '(' + argument0 + ', ' + argument1 + ')';
+  return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+};
+
+Blockly.PHP['lists_length'] = function(block) {
+  // List length.
+  var argument0 = Blockly.PHP.valueToCode(block, 'VALUE',
+      Blockly.PHP.ORDER_FUNCTION_CALL) || 'array()';
+  return ['count(' + argument0 + ')', Blockly.PHP.ORDER_FUNCTION_CALL];
+};
+
+Blockly.PHP['lists_isEmpty'] = function(block) {
+  // Is the list empty?
+  var argument0 = Blockly.PHP.valueToCode(block, 'VALUE',
+      Blockly.PHP.ORDER_FUNCTION_CALL) || 'array()';
+  return ['empty(' + argument0 + ')', Blockly.PHP.ORDER_FUNCTION_CALL];
+};
+
+Blockly.PHP['lists_indexOf'] = function(block) {
+  // Find an item in the list.
+  var operator = block.getFieldValue('END') == 'FIRST' ?
+      'indexOf' : 'lastIndexOf';
+  var argument0 = Blockly.PHP.valueToCode(block, 'FIND',
+      Blockly.PHP.ORDER_NONE) || '\'\'';
+  var argument1 = Blockly.PHP.valueToCode(block, 'VALUE',
+      Blockly.PHP.ORDER_MEMBER) || '[]';
+  var functionName;
+  if (block.getFieldValue('END') == 'FIRST'){
+    // indexOf
+    functionName = Blockly.PHP.provideFunction_(
+        'indexOf',
+        [ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
+        '($haystack, $needle) {',
+          '  for ($index = 0; $index < count($haystack); $index++) {',
+          '    if ($haystack[$index] == $needle) return $index+1;',
+          '  }',
+          '  return 0;',
+          '}']);
+  } else {
+    // lastIndexOf
+    functionName = Blockly.PHP.provideFunction_(
+        'lastIndexOf',
+        [ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
+        '($haystack, $needle) {',
+          '  $last = 0;',
+          '  for ($index = 0; $index < count($haystack); $index++) {',
+          '    if ($haystack[$index] == $needle) $last = $index+1;',
+          '  }',
+          '  return $last;',
+          '}']);
+  }
+
+  var code = functionName + '(' + argument1 + ', ' + argument0 + ')';
+  return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+};
+
+Blockly.PHP['lists_getIndex'] = function(block) {
+  // Get element at index.
+  var mode = block.getFieldValue('MODE') || 'GET';
+  var where = block.getFieldValue('WHERE') || 'FROM_START';
+  var at = Blockly.PHP.valueToCode(block, 'AT',
+      Blockly.PHP.ORDER_UNARY_NEGATION) || '1';
+  var list = Blockly.PHP.valueToCode(block, 'VALUE',
+      Blockly.PHP.ORDER_FUNCTION_CALL) || 'array()';
+
+  if (where == 'FIRST') {
+    if (mode == 'GET') {
+      var code = list + '[0]';
+      return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+    } else if (mode == 'GET_REMOVE') {
+      var code = 'array_shift(' + list + ')';
+      return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+    } else if (mode == 'REMOVE') {
+      return 'array_shift(' + list + ');\n';
+    }
+  } else if (where == 'LAST') {
+    if (mode == 'GET') {
+      var code = 'end(' + list + ')';
+      return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+    } else if (mode == 'GET_REMOVE') {
+      var code = 'array_pop(' + list + ')';
+      return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+    } else if (mode == 'REMOVE') {
+      return 'array_pop(' + list + ');\n';
+    }
+  } else if (where == 'FROM_START') {
+    // Blockly uses one-based indicies.
+    if (Blockly.isNumber(at)) {
+      // If the index is a naked number, decrement it right now.
+      at = parseFloat(at) - 1;
+    } else {
+      // If the index is dynamic, decrement it in code.
+      at += ' - 1';
+    }
+    if (mode == 'GET') {
+      var code = list + '[' + at + ']';
+      return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+    } else if (mode == 'GET_REMOVE') {
+      var code = 'array_splice(' + list + ', ' + at + ', 1)[0]';
+      return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+    } else if (mode == 'REMOVE') {
+      return 'array_splice(' + list + ', ' + at + ', 1);\n';
+    }
+  } else if (where == 'FROM_END') {
+    if (mode == 'GET') {
+      var code = 'array_slice(' + list + ', -' + at + ', 1)[0]';
+      return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+    } else if (mode == 'GET_REMOVE' || mode == 'REMOVE') {
+      code = 'array_splice(' + list + ', count(' + list + ') - ' + at + ', 1)[0]';
+      if (mode == 'GET_REMOVE') {
+        return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+      } else if (mode == 'REMOVE') {
+        return code + ';\n';
+      }
+    }
+  } else if (where == 'RANDOM') {
+    if (mode == 'GET'){
+      var functionName = Blockly.PHP.provideFunction_(
+          'lists_get_random_item',
+          [ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
+          '($list) {',
+              '  return $list[rand(0,count($list)-1)];',
+              '}']);
+      code = functionName + '(' + list + ')';
+      return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+    } else if (mode == 'GET_REMOVE'){
+      var functionName = Blockly.PHP.provideFunction_(
+          'lists_get_remove_random_item',
+          [ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
+          '(&$list) {',
+            '  $x = rand(0,count($list)-1);',
+            '  unset($list[$x]);',
+            '  return array_values($list);',
+            '}']);
+      code = functionName + '(' + list + ')';
+      return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+    } else if (mode == 'REMOVE') {
+      var functionName = Blockly.PHP.provideFunction_(
+          'lists_remove_random_item',
+          [ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
+          '(&$list) {',
+              '  unset($list[rand(0,count($list)-1)]);',
+              '}']);
+      return functionName + '(' + list + ');\n';
+    }
+  }
+  throw 'Unhandled combination (lists_getIndex).';
+};
+
+Blockly.PHP['lists_setIndex'] = function(block) {
+  // Set element at index.
+  // Note: Until February 2013 this block did not have MODE or WHERE inputs.
+  var list = Blockly.PHP.valueToCode(block, 'LIST',
+      Blockly.PHP.ORDER_MEMBER) || 'array()';
+  var mode = block.getFieldValue('MODE') || 'GET';
+  var where = block.getFieldValue('WHERE') || 'FROM_START';
+  var at = Blockly.PHP.valueToCode(block, 'AT',
+      Blockly.PHP.ORDER_NONE) || '1';
+  var value = Blockly.PHP.valueToCode(block, 'TO',
+      Blockly.PHP.ORDER_ASSIGNMENT) || 'null';
+  // Cache non-trivial values to variables to prevent repeated look-ups.
+  // Closure, which accesses and modifies 'list'.
+  function cacheList() {
+    if (list.match(/^\w+$/)) {
+      return '';
+    }
+    var listVar = Blockly.PHP.variableDB_.getDistinctName(
+        'tmp_list', Blockly.Variables.NAME_TYPE);
+    var code = listVar + ' = &' + list + ';\n';
+    list = listVar;
+    return code;
+  }
+  if (where == 'FIRST') {
+    if (mode == 'SET') {
+      return list + '[0] = ' + value + ';\n';
+    } else if (mode == 'INSERT') {
+      return 'array_unshift(' + list + ', ' + value + ');\n';
+    }
+  } else if (where == 'LAST') {
+    if (mode == 'SET') {
+      var functionName = Blockly.PHP.provideFunction_(
+          'lists_set_last_item',
+          [ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
+          '(&$list, $value) {',
+              '  $list[count($list) - 1] = $value;',
+              '}']);
+      return functionName + '(' + list + ', ' + value + ');\n';
+    } else if (mode == 'INSERT') {
+      return 'array_push(' + list + ', ' + value + ');\n';
+    }
+  } else if (where == 'FROM_START') {
+    // Blockly uses one-based indicies.
+    if (Blockly.isNumber(at)) {
+      // If the index is a naked number, decrement it right now.
+      at = parseFloat(at) - 1;
+    } else {
+      // If the index is dynamic, decrement it in code.
+      at += ' - 1';
+    }
+    if (mode == 'SET') {
+      return list + '[' + at + '] = ' + value + ';\n';
+    } else if (mode == 'INSERT') {
+      return 'array_splice(' + list + ', ' + at + ', 0, ' + value + ');\n';
+    }
+  } else if (where == 'FROM_END') {
+    if (mode == 'SET') {
+      var functionName = Blockly.PHP.provideFunction_(
+          'lists_set_from_end',
+          [ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
+          '(&$list, $at, $value) {',
+              '  $list[count($list) - $at] = $value;',
+              '}']);
+      return functionName + '(' + list + ', ' + at + ', ' + value + ');\n';
+    } else if (mode == 'INSERT') {
+      var functionName = Blockly.PHP.provideFunction_(
+          'lists_insert_from_end',
+          [ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
+          '(&$list, $at, $value) {',
+              '  return array_splice($list, count($list) - $at, 0, $value);',
+              '}']);
+      return functionName + '(' + list + ', ' + at + ', ' + value + ');\n';
+    }
+  } else if (where == 'RANDOM') {
+    var code = cacheList();
+    var xVar = Blockly.PHP.variableDB_.getDistinctName(
+        'tmp_x', Blockly.Variables.NAME_TYPE);
+    code += xVar + ' = rand(0, count(' + list + ')-1);\n';
+    if (mode == 'SET') {
+      code += list + '[' + xVar + '] = ' + value + ';\n';
+      return code;
+    } else if (mode == 'INSERT') {
+      code += 'array_splice(' + list + ', ' + xVar + ', 0, ' + value + ');\n';
+      return code;
+    }
+  }
+  throw 'Unhandled combination (lists_setIndex).';
+};
+
+Blockly.PHP['lists_getSublist'] = function(block) {
+  // Get sublist.
+  var list = Blockly.PHP.valueToCode(block, 'LIST',
+      Blockly.PHP.ORDER_MEMBER) || 'array()';
+  var where1 = block.getFieldValue('WHERE1');
+  var where2 = block.getFieldValue('WHERE2');
+  var at1 = Blockly.PHP.valueToCode(block, 'AT1',
+      Blockly.PHP.ORDER_NONE) || '1';
+  var at2 = Blockly.PHP.valueToCode(block, 'AT2',
+      Blockly.PHP.ORDER_NONE) || '1';
+  if (where1 == 'FIRST' && where2 == 'LAST') {
+    var code = list;
+  } else {
+    var functionName = Blockly.PHP.provideFunction_(
+        'lists_get_sublist',
+        [ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
+            '($list, $where1, $at1, $where2, $at2) {',
+            '  if ($where2 == \'FROM_START\') {',
+            '    $at2--;',
+            '  } else if ($where2 == \'FROM_END\') {',
+            '    $at2 = $at2 - $at1;',
+            '  } else if ($where2 == \'FIRST\') {',
+            '    $at2 = 0;',
+            '  } else if ($where2 == \'LAST\') {',
+            '    $at2 = count($list);',
+            '  } else {',
+            '    throw \'Unhandled option (lists_getSublist).\';',
+            '  }',
+            '  if ($where1 == \'FROM_START\') {',
+            '    $at1--;',
+            '  } else if ($where1 == \'FROM_END\') {',
+            '    $at1 = count($list) - $at1;',
+            '  } else if ($where1 == \'FIRST\') {',
+            '    $at1 = 0;',
+            '  } else if ($where1 == \'LAST\') {',
+            '    $at1 = count($list) - 1;',
+            '  } else {',
+            '    throw \'Unhandled option (lists_getSublist).\';',
+            '  }',
+            '  return array_slice($list, $at1, $at2);',
+          '}']);
+    var code = functionName + '(' + list + ', \'' +
+        where1 + '\', ' + at1 + ', \'' + where2 + '\', ' + at2 + ')';
+  }
+  return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+};
+
+Blockly.PHP['lists_split'] = function(block) {
+  // Block for splitting text into a list, or joining a list into text.
+  var value_input = Blockly.PHP.valueToCode(block, 'INPUT',
+      Blockly.PHP.ORDER_MEMBER);
+  var value_delim = Blockly.PHP.valueToCode(block, 'DELIM',
+      Blockly.PHP.ORDER_NONE) || '\'\'';
+  var mode = block.getFieldValue('MODE');
+  if (mode == 'SPLIT') {
+    if (!value_input) {
+      value_input = '\'\'';
+    }
+    var functionName = 'explode';
+  } else if (mode == 'JOIN') {
+    if (!value_input) {
+      value_input = 'array()';
+    }
+    var functionName = 'implode';
+  } else {
+    throw 'Unknown mode: ' + mode;
+  }
+  var code = functionName + '('+ value_delim + ', ' + value_input + ')';
+  return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+};
diff --git a/generators/php/logic.js b/generators/php/logic.js
new file mode 100644
index 000000000..59389239f
--- /dev/null
+++ b/generators/php/logic.js
@@ -0,0 +1,126 @@
+/**
+ * @license
+ * Visual Blocks Language
+ *
+ * Copyright 2015 Google Inc.
+ * https://developers.google.com/blockly/
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @fileoverview Generating PHP for logic blocks.
+ * @author daarond@gmail.com (Daaron Dwyer)
+ */
+'use strict';
+
+goog.provide('Blockly.PHP.logic');
+
+goog.require('Blockly.PHP');
+
+
+Blockly.PHP['controls_if'] = function(block) {
+  // If/elseif/else condition.
+  var n = 0;
+  var argument = Blockly.PHP.valueToCode(block, 'IF' + n,
+      Blockly.PHP.ORDER_NONE) || 'false';
+  var branch = Blockly.PHP.statementToCode(block, 'DO' + n);
+  var code = 'if (' + argument + ') {\n' + branch + '}';
+  for (n = 1; n <= block.elseifCount_; n++) {
+    argument = Blockly.PHP.valueToCode(block, 'IF' + n,
+        Blockly.PHP.ORDER_NONE) || 'false';
+    branch = Blockly.PHP.statementToCode(block, 'DO' + n);
+    code += ' else if (' + argument + ') {\n' + branch + '}';
+  }
+  if (block.elseCount_) {
+    branch = Blockly.PHP.statementToCode(block, 'ELSE');
+    code += ' else {\n' + branch + '}';
+  }
+  return code + '\n';
+};
+
+Blockly.PHP['logic_compare'] = function(block) {
+  // Comparison operator.
+  var OPERATORS = {
+    'EQ': '==',
+    'NEQ': '!=',
+    'LT': '<',
+    'LTE': '<=',
+    'GT': '>',
+    'GTE': '>='
+  };
+  var operator = OPERATORS[block.getFieldValue('OP')];
+  var order = (operator == '==' || operator == '!=') ?
+      Blockly.PHP.ORDER_EQUALITY : Blockly.PHP.ORDER_RELATIONAL;
+  var argument0 = Blockly.PHP.valueToCode(block, 'A', order) || '0';
+  var argument1 = Blockly.PHP.valueToCode(block, 'B', order) || '0';
+  var code = argument0 + ' ' + operator + ' ' + argument1;
+  return [code, order];
+};
+
+Blockly.PHP['logic_operation'] = function(block) {
+  // Operations 'and', 'or'.
+  var operator = (block.getFieldValue('OP') == 'AND') ? '&&' : '||';
+  var order = (operator == '&&') ? Blockly.PHP.ORDER_LOGICAL_AND :
+      Blockly.PHP.ORDER_LOGICAL_OR;
+  var argument0 = Blockly.PHP.valueToCode(block, 'A', order);
+  var argument1 = Blockly.PHP.valueToCode(block, 'B', order);
+  if (!argument0 && !argument1) {
+    // If there are no arguments, then the return value is false.
+    argument0 = 'false';
+    argument1 = 'false';
+  } else {
+    // Single missing arguments have no effect on the return value.
+    var defaultArgument = (operator == '&&') ? 'true' : 'false';
+    if (!argument0) {
+      argument0 = defaultArgument;
+    }
+    if (!argument1) {
+      argument1 = defaultArgument;
+    }
+  }
+  var code = argument0 + ' ' + operator + ' ' + argument1;
+  return [code, order];
+};
+
+Blockly.PHP['logic_negate'] = function(block) {
+  // Negation.
+  var order = Blockly.PHP.ORDER_LOGICAL_NOT;
+  var argument0 = Blockly.PHP.valueToCode(block, 'BOOL', order) ||
+      'true';
+  var code = '!' + argument0;
+  return [code, order];
+};
+
+Blockly.PHP['logic_boolean'] = function(block) {
+  // Boolean values true and false.
+  var code = (block.getFieldValue('BOOL') == 'TRUE') ? 'true' : 'false';
+  return [code, Blockly.PHP.ORDER_ATOMIC];
+};
+
+Blockly.PHP['logic_null'] = function(block) {
+  // Null data type.
+  return ['null', Blockly.PHP.ORDER_ATOMIC];
+};
+
+Blockly.PHP['logic_ternary'] = function(block) {
+  // Ternary operator.
+  var value_if = Blockly.PHP.valueToCode(block, 'IF',
+      Blockly.PHP.ORDER_CONDITIONAL) || 'false';
+  var value_then = Blockly.PHP.valueToCode(block, 'THEN',
+      Blockly.PHP.ORDER_CONDITIONAL) || 'null';
+  var value_else = Blockly.PHP.valueToCode(block, 'ELSE',
+      Blockly.PHP.ORDER_CONDITIONAL) || 'null';
+  var code = value_if + ' ? ' + value_then + ' : ' + value_else;
+  return [code, Blockly.PHP.ORDER_CONDITIONAL];
+};
diff --git a/generators/php/loops.js b/generators/php/loops.js
new file mode 100644
index 000000000..84ec10414
--- /dev/null
+++ b/generators/php/loops.js
@@ -0,0 +1,169 @@
+/**
+ * @license
+ * Visual Blocks Language
+ *
+ * Copyright 2015 Google Inc.
+ * https://developers.google.com/blockly/
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @fileoverview Generating PHP for loop blocks.
+ * @author daarond@gmail.com (Daaron Dwyer)
+ */
+'use strict';
+
+goog.provide('Blockly.PHP.loops');
+
+goog.require('Blockly.PHP');
+
+
+Blockly.PHP['controls_repeat'] = function(block) {
+  // Repeat n times (internal number).
+  var repeats = Number(block.getFieldValue('TIMES'));
+  var branch = Blockly.PHP.statementToCode(block, 'DO');
+  branch = Blockly.PHP.addLoopTrap(branch, block.id);
+  var loopVar = Blockly.PHP.variableDB_.getDistinctName(
+      'count', Blockly.Variables.NAME_TYPE);
+  var code = 'for (' + loopVar + ' = 0; ' +
+      loopVar + ' < ' + repeats + '; ' +
+      loopVar + '++) {\n' +
+      branch + '}\n';
+  return code;
+};
+
+Blockly.PHP['controls_repeat_ext'] = function(block) {
+  // Repeat n times (external number).
+  var repeats = Blockly.PHP.valueToCode(block, 'TIMES',
+      Blockly.PHP.ORDER_ASSIGNMENT) || '0';
+  var branch = Blockly.PHP.statementToCode(block, 'DO');
+  branch = Blockly.PHP.addLoopTrap(branch, block.id);
+  var code = '';
+  var loopVar = Blockly.PHP.variableDB_.getDistinctName(
+      'count', Blockly.Variables.NAME_TYPE);
+  var endVar = repeats;
+  if (!repeats.match(/^\w+$/) && !Blockly.isNumber(repeats)) {
+    var endVar = Blockly.PHP.variableDB_.getDistinctName(
+        'repeat_end', Blockly.Variables.NAME_TYPE);
+    code += endVar + ' = ' + repeats + ';\n';
+  }
+  code += 'for (' + loopVar + ' = 0; ' +
+      loopVar + ' < ' + endVar + '; ' +
+      loopVar + '++) {\n' +
+      branch + '}\n';
+  return code;
+};
+
+Blockly.PHP['controls_whileUntil'] = function(block) {
+  // Do while/until loop.
+  var until = block.getFieldValue('MODE') == 'UNTIL';
+  var argument0 = Blockly.PHP.valueToCode(block, 'BOOL',
+      until ? Blockly.PHP.ORDER_LOGICAL_NOT :
+      Blockly.PHP.ORDER_NONE) || 'false';
+  var branch = Blockly.PHP.statementToCode(block, 'DO');
+  branch = Blockly.PHP.addLoopTrap(branch, block.id);
+  if (until) {
+    argument0 = '!' + argument0;
+  }
+  return 'while (' + argument0 + ') {\n' + branch + '}\n';
+};
+
+Blockly.PHP['controls_for'] = function(block) {
+  // For loop.
+  var variable0 = Blockly.PHP.variableDB_.getName(
+      block.getFieldValue('VAR'), Blockly.Variables.NAME_TYPE);
+  var argument0 = Blockly.PHP.valueToCode(block, 'FROM',
+      Blockly.PHP.ORDER_ASSIGNMENT) || '0';
+  var argument1 = Blockly.PHP.valueToCode(block, 'TO',
+      Blockly.PHP.ORDER_ASSIGNMENT) || '0';
+  var increment = Blockly.PHP.valueToCode(block, 'BY',
+      Blockly.PHP.ORDER_ASSIGNMENT) || '1';
+  var branch = Blockly.PHP.statementToCode(block, 'DO');
+  branch = Blockly.PHP.addLoopTrap(branch, block.id);
+  var code;
+  if (Blockly.isNumber(argument0) && Blockly.isNumber(argument1) &&
+      Blockly.isNumber(increment)) {
+    // All arguments are simple numbers.
+    var up = parseFloat(argument0) <= parseFloat(argument1);
+    code = 'for (' + variable0 + ' = ' + argument0 + '; ' +
+        variable0 + (up ? ' <= ' : ' >= ') + argument1 + '; ' +
+        variable0;
+    var step = Math.abs(parseFloat(increment));
+    if (step == 1) {
+      code += up ? '++' : '--';
+    } else {
+      code += (up ? ' += ' : ' -= ') + step;
+    }
+    code += ') {\n' + branch + '}\n';
+  } else {
+    code = '';
+    // Cache non-trivial values to variables to prevent repeated look-ups.
+    var startVar = argument0;
+    if (!argument0.match(/^\w+$/) && !Blockly.isNumber(argument0)) {
+      startVar = Blockly.PHP.variableDB_.getDistinctName(
+          variable0 + '_start', Blockly.Variables.NAME_TYPE);
+      code += startVar + ' = ' + argument0 + ';\n';
+    }
+    var endVar = argument1;
+    if (!argument1.match(/^\w+$/) && !Blockly.isNumber(argument1)) {
+      var endVar = Blockly.PHP.variableDB_.getDistinctName(
+          variable0 + '_end', Blockly.Variables.NAME_TYPE);
+      code += endVar + ' = ' + argument1 + ';\n';
+    }
+    // Determine loop direction at start, in case one of the bounds
+    // changes during loop execution.
+    var incVar = Blockly.PHP.variableDB_.getDistinctName(
+        variable0 + '_inc', Blockly.Variables.NAME_TYPE);
+    code += incVar + ' = ';
+    if (Blockly.isNumber(increment)) {
+      code += Math.abs(increment) + ';\n';
+    } else {
+      code += 'abs(' + increment + ');\n';
+    }
+    code += 'if (' + startVar + ' > ' + endVar + ') {\n';
+    code += Blockly.PHP.INDENT + incVar + ' = -' + incVar + ';\n';
+    code += '}\n';
+    code += 'for (' + variable0 + ' = ' + startVar + ';\n' +
+        '     ' + incVar + ' >= 0 ? ' +
+        variable0 + ' <= ' + endVar + ' : ' +
+        variable0 + ' >= ' + endVar + ';\n' +
+        '     ' + variable0 + ' += ' + incVar + ') {\n' +
+        branch + '}\n';
+  }
+  return code;
+};
+
+Blockly.PHP['controls_forEach'] = function(block) {
+  // For each loop.
+  var variable0 = Blockly.PHP.variableDB_.getName(
+      block.getFieldValue('VAR'), Blockly.Variables.NAME_TYPE);
+  var argument0 = Blockly.PHP.valueToCode(block, 'LIST',
+      Blockly.PHP.ORDER_ASSIGNMENT) || '[]';
+  var branch = Blockly.PHP.statementToCode(block, 'DO');
+  branch = Blockly.PHP.addLoopTrap(branch, block.id);
+  var code = '';
+  code += 'foreach (' + argument0 + ' as ' + variable0 + ') {\n' + branch + '}\n';
+  return code;
+};
+
+Blockly.PHP['controls_flow_statements'] = function(block) {
+  // Flow statements: continue, break.
+  switch (block.getFieldValue('FLOW')) {
+    case 'BREAK':
+      return 'break;\n';
+    case 'CONTINUE':
+      return 'continue;\n';
+  }
+  throw 'Unknown flow statement.';
+};
diff --git a/generators/php/math.js b/generators/php/math.js
new file mode 100644
index 000000000..a10290445
--- /dev/null
+++ b/generators/php/math.js
@@ -0,0 +1,371 @@
+/**
+ * @license
+ * Visual Blocks Language
+ *
+ * Copyright 2015 Google Inc.
+ * https://developers.google.com/blockly/
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @fileoverview Generating PHP for math blocks.
+ * @author daarond@gmail.com (Daaron Dwyer)
+ */
+'use strict';
+
+goog.provide('Blockly.PHP.math');
+
+goog.require('Blockly.PHP');
+
+
+Blockly.PHP['math_number'] = function(block) {
+  // Numeric value.
+  var code = parseFloat(block.getFieldValue('NUM'));
+  return [code, Blockly.PHP.ORDER_ATOMIC];
+};
+
+Blockly.PHP['math_arithmetic'] = function(block) {
+  // Basic arithmetic operators, and power.
+  var OPERATORS = {
+    'ADD': [' + ', Blockly.PHP.ORDER_ADDITION],
+    'MINUS': [' - ', Blockly.PHP.ORDER_SUBTRACTION],
+    'MULTIPLY': [' * ', Blockly.PHP.ORDER_MULTIPLICATION],
+    'DIVIDE': [' / ', Blockly.PHP.ORDER_DIVISION],
+    'POWER': [null, Blockly.PHP.ORDER_COMMA]  // Handle power separately.
+  };
+  var tuple = OPERATORS[block.getFieldValue('OP')];
+  var operator = tuple[0];
+  var order = tuple[1];
+  var argument0 = Blockly.PHP.valueToCode(block, 'A', order) || '0';
+  var argument1 = Blockly.PHP.valueToCode(block, 'B', order) || '0';
+  var code;
+  // Power in PHP requires a special case since it has no operator.
+  if (!operator) {
+    code = 'pow(' + argument0 + ', ' + argument1 + ')';
+    return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+  }
+  code = argument0 + operator + argument1;
+  return [code, order];
+};
+
+Blockly.PHP['math_single'] = function(block) {
+  // Math operators with single operand.
+  var operator = block.getFieldValue('OP');
+  var code;
+  var arg;
+  if (operator == 'NEG') {
+    // Negation is a special case given its different operator precedence.
+    arg = Blockly.PHP.valueToCode(block, 'NUM',
+        Blockly.PHP.ORDER_UNARY_NEGATION) || '0';
+    if (arg[0] == '-') {
+      // --3 is not legal in JS.
+      arg = ' ' + arg;
+    }
+    code = '-' + arg;
+    return [code, Blockly.PHP.ORDER_UNARY_NEGATION];
+  }
+  if (operator == 'SIN' || operator == 'COS' || operator == 'TAN') {
+    arg = Blockly.PHP.valueToCode(block, 'NUM',
+        Blockly.PHP.ORDER_DIVISION) || '0';
+  } else {
+    arg = Blockly.PHP.valueToCode(block, 'NUM',
+        Blockly.PHP.ORDER_NONE) || '0';
+  }
+  // First, handle cases which generate values that don't need parentheses
+  // wrapping the code.
+  switch (operator) {
+    case 'ABS':
+      code = 'abs(' + arg + ')';
+      break;
+    case 'ROOT':
+      code = 'sqrt(' + arg + ')';
+      break;
+    case 'LN':
+      code = 'log(' + arg + ')';
+      break;
+    case 'EXP':
+      code = 'exp(' + arg + ')';
+      break;
+    case 'POW10':
+      code = 'pow(10,' + arg + ')';
+      break;
+    case 'ROUND':
+      code = 'round(' + arg + ')';
+      break;
+    case 'ROUNDUP':
+      code = 'ceil(' + arg + ')';
+      break;
+    case 'ROUNDDOWN':
+      code = 'floor(' + arg + ')';
+      break;
+    case 'SIN':
+      code = 'sin(' + arg + ' / 180 * pi())';
+      break;
+    case 'COS':
+      code = 'cos(' + arg + ' / 180 * pi())';
+      break;
+    case 'TAN':
+      code = 'tan(' + arg + ' / 180 * pi())';
+      break;
+  }
+  if (code) {
+    return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+  }
+  // Second, handle cases which generate values that may need parentheses
+  // wrapping the code.
+  switch (operator) {
+    case 'LOG10':
+      code = 'log(' + arg + ') / log(10)';
+      break;
+    case 'ASIN':
+      code = 'asin(' + arg + ') / pi() * 180';
+      break;
+    case 'ACOS':
+      code = 'acos(' + arg + ') / pi() * 180';
+      break;
+    case 'ATAN':
+      code = 'atan(' + arg + ') / pi() * 180';
+      break;
+    default:
+      throw 'Unknown math operator: ' + operator;
+  }
+  return [code, Blockly.PHP.ORDER_DIVISION];
+};
+
+Blockly.PHP['math_constant'] = function(block) {
+  // Constants: PI, E, the Golden Ratio, sqrt(2), 1/sqrt(2), INFINITY.
+  var CONSTANTS = {
+    'PI': ['M_PI', Blockly.PHP.ORDER_ATOMIC],
+    'E': ['M_E', Blockly.PHP.ORDER_ATOMIC],
+    'GOLDEN_RATIO':
+        ['(1 + sqrt(5)) / 2', Blockly.PHP.ORDER_DIVISION],
+    'SQRT2': ['M_SQRT2', Blockly.PHP.ORDER_ATOMIC],
+    'SQRT1_2': ['M_SQRT1_2', Blockly.PHP.ORDER_ATOMIC],
+    'INFINITY': ['INF', Blockly.PHP.ORDER_ATOMIC]
+  };
+  return CONSTANTS[block.getFieldValue('CONSTANT')];
+};
+
+Blockly.PHP['math_number_property'] = function(block) {
+  // Check if a number is even, odd, prime, whole, positive, or negative
+  // or if it is divisible by certain number. Returns true or false.
+  var number_to_check = Blockly.PHP.valueToCode(block, 'NUMBER_TO_CHECK',
+      Blockly.PHP.ORDER_MODULUS) || '0';
+  var dropdown_property = block.getFieldValue('PROPERTY');
+  var code;
+  if (dropdown_property == 'PRIME') {
+    // Prime is a special case as it is not a one-liner test.
+    var functionName = Blockly.PHP.provideFunction_(
+        'math_isPrime',
+        [ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ + '($n) {',
+          '  // https://en.wikipedia.org/wiki/Primality_test#Naive_methods',
+          '  if ($n == 2 || $n == 3) {',
+          '    return true;',
+          '  }',
+          '  // False if n is NaN, negative, is 1, or not whole.',
+          '  // And false if n is divisible by 2 or 3.',
+          '  if (!is_numeric($n) || $n <= 1 || $n % 1 != 0 || $n % 2 == 0 ||' +
+          ' $n % 3 == 0) {',
+          '    return false;',
+          '  }',
+          '  // Check all the numbers of form 6k +/- 1, up to sqrt(n).',
+          '  for ($x = 6; $x <= sqrt($n) + 1; $x += 6) {',
+          '    if ($n % ($x - 1) == 0 || $n % ($x + 1) == 0) {',
+          '      return false;',
+          '    }',
+          '  }',
+          '  return true;',
+          '}']);
+    code = functionName + '(' + number_to_check + ')';
+    return [code, Blockly.JavaScript.ORDER_FUNCTION_CALL];
+  }
+  switch (dropdown_property) {
+    case 'EVEN':
+      code = number_to_check + ' % 2 == 0';
+      break;
+    case 'ODD':
+      code = number_to_check + ' % 2 == 1';
+      break;
+    case 'WHOLE':
+      code = 'is_int(' + number_to_check + ')';
+      break;
+    case 'POSITIVE':
+      code = number_to_check + ' > 0';
+      break;
+    case 'NEGATIVE':
+      code = number_to_check + ' < 0';
+      break;
+    case 'DIVISIBLE_BY':
+      var divisor = Blockly.PHP.valueToCode(block, 'DIVISOR',
+          Blockly.PHP.ORDER_MODULUS) || '0';
+      code = number_to_check + ' % ' + divisor + ' == 0';
+      break;
+  }
+  return [code, Blockly.PHP.ORDER_EQUALITY];
+};
+
+Blockly.PHP['math_change'] = function(block) {
+  // Add to a variable in place.
+  var argument0 = Blockly.PHP.valueToCode(block, 'DELTA',
+      Blockly.PHP.ORDER_ADDITION) || '0';
+  var varName = Blockly.PHP.variableDB_.getName(
+      block.getFieldValue('VAR'), Blockly.Variables.NAME_TYPE);
+  return varName + ' += ' + argument0 + ';\n';
+};
+
+// Rounding functions have a single operand.
+Blockly.PHP['math_round'] = Blockly.PHP['math_single'];
+// Trigonometry functions have a single operand.
+Blockly.PHP['math_trig'] = Blockly.PHP['math_single'];
+
+Blockly.PHP['math_on_list'] = function(block) {
+  // Math functions for lists.
+  var func = block.getFieldValue('OP');
+  var list, code;
+  switch (func) {
+    case 'SUM':
+      list = Blockly.PHP.valueToCode(block, 'LIST',
+          Blockly.PHP.ORDER_FUNCTION_CALL) || 'array()';
+      code = 'array_sum(' + list + ')';
+      break;
+    case 'MIN':
+      list = Blockly.PHP.valueToCode(block, 'LIST',
+          Blockly.PHP.ORDER_FUNCTION_CALL) || 'array()';
+      code = 'min(' + list + ')';
+      break;
+    case 'MAX':
+      list = Blockly.PHP.valueToCode(block, 'LIST',
+          Blockly.PHP.ORDER_FUNCTION_CALL) || 'array()';
+      code = 'max(' + list + ')';
+      break;
+    case 'AVERAGE':
+      var functionName = Blockly.PHP.provideFunction_(
+          'math_mean',
+          [ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
+              '($myList) {',
+            '  return array_sum($myList) / count($myList);',
+            '}']);
+      list = Blockly.PHP.valueToCode(block, 'LIST',
+          Blockly.PHP.ORDER_NONE) || 'array()';
+      code = functionName + '(' + list + ')';
+      break;
+    case 'MEDIAN':
+      var functionName = Blockly.PHP.provideFunction_(
+          'math_median',
+          [ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
+              '($arr) {',
+            '  sort($arr,SORT_NUMERIC);',
+            '  return (count($arr) % 2) ? $arr[floor(count($arr)/2)] : ',
+            '      ($arr[floor(count($arr)/2)] + $arr[floor(count($arr)/2) - 1]) / 2;',
+            '}']);
+      list = Blockly.PHP.valueToCode(block, 'LIST',
+          Blockly.PHP.ORDER_NONE) || '[]';
+      code = functionName + '(' + list + ')';
+      break;
+    case 'MODE':
+      // As a list of numbers can contain more than one mode,
+      // the returned result is provided as an array.
+      // Mode of [3, 'x', 'x', 1, 1, 2, '3'] -> ['x', 1].
+      var functionName = Blockly.PHP.provideFunction_(
+          'math_modes',
+          [ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
+              '($values) {',
+            '  $v = array_count_values($values);',
+            '  arsort($v);',
+            '  foreach($v as $k => $v){$total = $k; break;}',
+            '  return array($total);',
+            '}']);
+      list = Blockly.PHP.valueToCode(block, 'LIST',
+          Blockly.PHP.ORDER_NONE) || '[]';
+      code = functionName + '(' + list + ')';
+      break;
+    case 'STD_DEV':
+      var functionName = Blockly.PHP.provideFunction_(
+          'math_standard_deviation',
+          [ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
+          '($numbers) {',
+            '  $n = count($numbers);',
+            '  if (!$n) return null;',
+            '  $mean = array_sum($numbers) / count($numbers);',
+            '  foreach($numbers as $key => $num) $devs[$key] = pow($num - $mean, 2);',
+            '  return sqrt(array_sum($devs) / (count($devs) - 1));',
+            '}']);
+      list = Blockly.PHP.valueToCode(block, 'LIST',
+              Blockly.PHP.ORDER_NONE) || '[]';
+      code = functionName + '(' + list + ')';
+      break;
+    case 'RANDOM':
+      var functionName = Blockly.PHP.provideFunction_(
+          'math_random_list',
+          [ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
+              '($list) {',
+            '  $x = rand(0, count($list)-1);',
+            '  return $list[$x];',
+            '}']);
+      list = Blockly.PHP.valueToCode(block, 'LIST',
+          Blockly.PHP.ORDER_NONE) || '[]';
+      code = functionName + '(' + list + ')';
+      break;
+    default:
+      throw 'Unknown operator: ' + func;
+  }
+  return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+};
+
+Blockly.PHP['math_modulo'] = function(block) {
+  // Remainder computation.
+  var argument0 = Blockly.PHP.valueToCode(block, 'DIVIDEND',
+      Blockly.PHP.ORDER_MODULUS) || '0';
+  var argument1 = Blockly.PHP.valueToCode(block, 'DIVISOR',
+      Blockly.PHP.ORDER_MODULUS) || '0';
+  var code = argument0 + ' % ' + argument1;
+  return [code, Blockly.PHP.ORDER_MODULUS];
+};
+
+Blockly.PHP['math_constrain'] = function(block) {
+  // Constrain a number between two limits.
+  var argument0 = Blockly.PHP.valueToCode(block, 'VALUE',
+      Blockly.PHP.ORDER_COMMA) || '0';
+  var argument1 = Blockly.PHP.valueToCode(block, 'LOW',
+      Blockly.PHP.ORDER_COMMA) || '0';
+  var argument2 = Blockly.PHP.valueToCode(block, 'HIGH',
+      Blockly.PHP.ORDER_COMMA) || 'Infinity';
+  var code = 'min(max(' + argument0 + ', ' + argument1 + '), ' +
+      argument2 + ')';
+  return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+};
+
+Blockly.PHP['math_random_int'] = function(block) {
+  // Random integer between [X] and [Y].
+  var argument0 = Blockly.PHP.valueToCode(block, 'FROM',
+      Blockly.PHP.ORDER_COMMA) || '0';
+  var argument1 = Blockly.PHP.valueToCode(block, 'TO',
+      Blockly.PHP.ORDER_COMMA) || '0';
+  var functionName = Blockly.PHP.provideFunction_(
+      'math_random_int',
+      [ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
+          '($a, $b) {',
+        '  if ($a > $b) {',
+        '    return rand($b, $a);',
+        '  }',
+        '  return rand($a, $b);',
+        '}']);
+  var code = functionName + '(' + argument0 + ', ' + argument1 + ')';
+  return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+};
+
+Blockly.PHP['math_random_float'] = function(block) {
+  // Random fraction between 0 and 1.
+  return ['(float)rand()/(float)getrandmax()', Blockly.PHP.ORDER_FUNCTION_CALL];
+};
diff --git a/generators/php/procedures.js b/generators/php/procedures.js
new file mode 100644
index 000000000..75903e31c
--- /dev/null
+++ b/generators/php/procedures.js
@@ -0,0 +1,122 @@
+/**
+ * @license
+ * Visual Blocks Language
+ *
+ * Copyright 2015 Google Inc.
+ * https://developers.google.com/blockly/
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @fileoverview Generating PHP for procedure blocks.
+ * @author daarond@gmail.com (Daaron Dwyer)
+ */
+'use strict';
+
+goog.provide('Blockly.PHP.procedures');
+
+goog.require('Blockly.PHP');
+
+Blockly.PHP['procedures_defreturn'] = function(block) {
+  // Define a procedure with a return value.
+  // First, add a 'global' statement for every variable that is assigned.
+  var globals = Blockly.Variables.allVariables(block);
+  for (var i = globals.length - 1; i >= 0; i--) {
+      var varName = globals[i];
+      if (block.arguments_.indexOf(varName) == -1) {
+          globals[i] = Blockly.PHP.variableDB_.getName(varName,
+              Blockly.Variables.NAME_TYPE);
+      } else {
+          // This variable is actually a parameter name.  Do not include it in
+          // the list of globals, thus allowing it be of local scope.
+          globals.splice(i, 1);
+      }
+  }
+  globals = globals.length ? '  global ' + globals.join(', ') + ';\n' : '';
+
+  var funcName = Blockly.PHP.variableDB_.getName(
+      block.getFieldValue('NAME'), Blockly.Procedures.NAME_TYPE);
+  var branch = Blockly.PHP.statementToCode(block, 'STACK');
+  if (Blockly.PHP.STATEMENT_PREFIX) {
+    branch = Blockly.PHP.prefixLines(
+        Blockly.PHP.STATEMENT_PREFIX.replace(/%1/g,
+        '\'' + block.id + '\''), Blockly.PHP.INDENT) + branch;
+  }
+  if (Blockly.PHP.INFINITE_LOOP_TRAP) {
+    branch = Blockly.PHP.INFINITE_LOOP_TRAP.replace(/%1/g,
+        '\'' + block.id + '\'') + branch;
+  }
+  var returnValue = Blockly.PHP.valueToCode(block, 'RETURN',
+      Blockly.PHP.ORDER_NONE) || '';
+  if (returnValue) {
+    returnValue = '  return ' + returnValue + ';\n';
+  }
+  var args = [];
+  for (var x = 0; x < block.arguments_.length; x++) {
+    args[x] = Blockly.PHP.variableDB_.getName(block.arguments_[x],
+        Blockly.Variables.NAME_TYPE);
+  }
+  var code = 'function ' + funcName + '(' + args.join(', ') + ') {\n' +
+      globals + branch + returnValue + '}';
+  code = Blockly.PHP.scrub_(block, code);
+  Blockly.PHP.definitions_[funcName] = code;
+  return null;
+};
+
+// Defining a procedure without a return value uses the same generator as
+// a procedure with a return value.
+Blockly.PHP['procedures_defnoreturn'] =
+    Blockly.PHP['procedures_defreturn'];
+
+Blockly.PHP['procedures_callreturn'] = function(block) {
+  // Call a procedure with a return value.
+  var funcName = Blockly.PHP.variableDB_.getName(
+      block.getFieldValue('NAME'), Blockly.Procedures.NAME_TYPE);
+  var args = [];
+  for (var x = 0; x < block.arguments_.length; x++) {
+    args[x] = Blockly.PHP.valueToCode(block, 'ARG' + x,
+        Blockly.PHP.ORDER_COMMA) || 'null';
+  }
+  var code = funcName + '(' + args.join(', ') + ')';
+  return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+};
+
+Blockly.PHP['procedures_callnoreturn'] = function(block) {
+  // Call a procedure with no return value.
+  var funcName = Blockly.PHP.variableDB_.getName(
+      block.getFieldValue('NAME'), Blockly.Procedures.NAME_TYPE);
+  var args = [];
+  for (var x = 0; x < block.arguments_.length; x++) {
+    args[x] = Blockly.PHP.valueToCode(block, 'ARG' + x,
+        Blockly.PHP.ORDER_COMMA) || 'null';
+  }
+  var code = funcName + '(' + args.join(', ') + ');\n';
+  return code;
+};
+
+Blockly.PHP['procedures_ifreturn'] = function(block) {
+  // Conditionally return value from a procedure.
+  var condition = Blockly.PHP.valueToCode(block, 'CONDITION',
+      Blockly.PHP.ORDER_NONE) || 'false';
+  var code = 'if (' + condition + ') {\n';
+  if (block.hasReturnValue_) {
+    var value = Blockly.PHP.valueToCode(block, 'VALUE',
+        Blockly.PHP.ORDER_NONE) || 'null';
+    code += '  return ' + value + ';\n';
+  } else {
+    code += '  return;\n';
+  }
+  code += '}\n';
+  return code;
+};
diff --git a/generators/php/text.js b/generators/php/text.js
new file mode 100644
index 000000000..1368713f4
--- /dev/null
+++ b/generators/php/text.js
@@ -0,0 +1,254 @@
+/**
+ * @license
+ * Visual Blocks Language
+ *
+ * Copyright 2015 Google Inc.
+ * https://developers.google.com/blockly/
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @fileoverview Generating PHP for text blocks.
+ * @author daarond@gmail.com (Daaron Dwyer)
+ */
+'use strict';
+
+goog.provide('Blockly.PHP.texts');
+
+goog.require('Blockly.PHP');
+
+
+Blockly.PHP['text'] = function(block) {
+  // Text value.
+  var code = Blockly.PHP.quote_(block.getFieldValue('TEXT'));
+  return [code, Blockly.PHP.ORDER_ATOMIC];
+};
+
+Blockly.PHP['text_join'] = function(block) {
+  // Create a string made up of any number of elements of any type.
+  var code;
+  if (block.itemCount_ == 0) {
+    return ['\'\'', Blockly.PHP.ORDER_ATOMIC];
+  } else if (block.itemCount_ == 1) {
+    var argument0 = Blockly.PHP.valueToCode(block, 'ADD0',
+        Blockly.PHP.ORDER_NONE) || '\'\'';
+    code = argument0;
+    return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+  } else if (block.itemCount_ == 2) {
+    var argument0 = Blockly.PHP.valueToCode(block, 'ADD0',
+        Blockly.PHP.ORDER_NONE) || '\'\'';
+    var argument1 = Blockly.PHP.valueToCode(block, 'ADD1',
+        Blockly.PHP.ORDER_NONE) || '\'\'';
+    code = argument0 + ' . ' + argument1;
+    return [code, Blockly.PHP.ORDER_ADDITION];
+  } else {
+    code = new Array(block.itemCount_);
+    for (var n = 0; n < block.itemCount_; n++) {
+      code[n] = Blockly.PHP.valueToCode(block, 'ADD' + n,
+          Blockly.PHP.ORDER_COMMA) || '\'\'';
+    }
+    code = 'implode(\'\', array(' + code.join(',') + '))';
+    return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+  }
+};
+
+Blockly.PHP['text_append'] = function(block) {
+  // Append to a variable in place.
+  var varName = Blockly.PHP.variableDB_.getName(
+      block.getFieldValue('VAR'), Blockly.Variables.NAME_TYPE);
+  var argument0 = Blockly.PHP.valueToCode(block, 'TEXT',
+      Blockly.PHP.ORDER_NONE) || '\'\'';
+  return varName + ' .= ' + argument0 + ';\n';
+};
+
+Blockly.PHP['text_length'] = function(block) {
+  // String length.
+  var argument0 = Blockly.PHP.valueToCode(block, 'VALUE',
+      Blockly.PHP.ORDER_FUNCTION_CALL) || '\'\'';
+  return ['strlen(' + argument0 + ')', Blockly.PHP.ORDER_FUNCTION_CALL];
+};
+
+Blockly.PHP['text_isEmpty'] = function(block) {
+  // Is the string null?
+  var argument0 = Blockly.PHP.valueToCode(block, 'VALUE',
+      Blockly.PHP.ORDER_FUNCTION_CALL) || '\'\'';
+  return ['empty(' + argument0 + ')', Blockly.PHP.ORDER_FUNCTION_CALL];
+};
+
+Blockly.PHP['text_indexOf'] = function(block) {
+  // Search the text for a substring.
+  var operator = block.getFieldValue('END') == 'FIRST' ?
+      'strpos' : 'strrpos';
+  var argument0 = Blockly.PHP.valueToCode(block, 'FIND',
+      Blockly.PHP.ORDER_FUNCTION_CALL) || '\'\'';
+  var argument1 = Blockly.PHP.valueToCode(block, 'VALUE',
+      Blockly.PHP.ORDER_FUNCTION_CALL) || '\'\'';
+  var code = operator + '(' + argument1 + ', ' + argument0 + ') + 1';
+
+  var functionName = Blockly.PHP.provideFunction_(
+      block.getFieldValue('END')=='FIRST'?'text_indexOf':'text_lastIndexOf',
+      [ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
+      '($text, $search) {',
+        '  $pos = ' + operator + '($text, $search);',
+        '  return $pos===false?0:$pos+1;',
+        '}']);
+  code = functionName + '(' + argument1 + ', ' + argument0 + ')';
+  return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+};
+
+Blockly.PHP['text_charAt'] = function(block) {
+  // Get letter at index.
+  var where = block.getFieldValue('WHERE') || 'FROM_START';
+  var at = Blockly.PHP.valueToCode(block, 'AT',
+      Blockly.PHP.ORDER_FUNCTION_CALL) || '0';
+  var text = Blockly.PHP.valueToCode(block, 'VALUE',
+      Blockly.PHP.ORDER_FUNCTION_CALL) || '\'\'';
+  switch (where) {
+    case 'FIRST':
+      var code = text + '[0]';
+      return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+    case 'LAST':
+      var code = 'substr(' + text + ',-1,1)';
+      return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+    case 'FROM_START':
+      // Blockly uses one-based indicies.
+      if (Blockly.isNumber(at)) {
+        // If the index is a naked number, decrement it right now.
+        at = parseFloat(at) - 1;
+      } else {
+        // If the index is dynamic, decrement it in code.
+        at += ' - 1';
+      }
+      var code = 'substr(' + text + ', ' + at + ', 1)';
+      return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+    case 'FROM_END':
+      var code = 'substr(' + text + ', -' + at + ', 1)';
+      return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+    case 'RANDOM':
+      var functionName = Blockly.PHP.provideFunction_(
+          'text_random_letter',
+          [ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
+              '($text) {',
+            '  return $text[rand(0, strlen($text)-1)];',
+            '}']);
+      code = functionName + '(' + text + ')';
+      return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+  }
+  throw 'Unhandled option (text_charAt).';
+};
+
+Blockly.PHP['text_getSubstring'] = function(block) {
+  // Get substring.
+  var text = Blockly.PHP.valueToCode(block, 'STRING',
+      Blockly.PHP.ORDER_FUNCTION_CALL) || '\'\'';
+  var where1 = block.getFieldValue('WHERE1');
+  var where2 = block.getFieldValue('WHERE2');
+  var at1 = Blockly.PHP.valueToCode(block, 'AT1',
+      Blockly.PHP.ORDER_FUNCTION_CALL) || '0';
+  var at2 = Blockly.PHP.valueToCode(block, 'AT2',
+      Blockly.PHP.ORDER_FUNCTION_CALL) || '0';
+  if (where1 == 'FIRST' && where2 == 'LAST') {
+    var code = text;
+  } else {
+    var functionName = Blockly.PHP.provideFunction_(
+        'text_get_substring',
+        [ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
+            '($text, $where1, $at1, $where2, $at2) {',
+          '    if ($where2 == \'FROM_START\') {',
+          '      $at2--;',
+          '    } else if ($where2 == \'FROM_END\') {',
+          '      $at2 = $at2 - $at1;',
+          '    } else if ($where2 == \'FIRST\') {',
+          '      $at2 = 0;',
+          '    } else if ($where2 == \'LAST\') {',
+          '      $at2 = strlen($text);',
+          '    } else { $at2 = 0; }',
+          '    if ($where1 == \'FROM_START\') {',
+          '      $at1--;',
+          '    } else if ($where1 == \'FROM_END\') {',
+          '      $at1 = strlen($text) - $at1;',
+          '    } else if ($where1 == \'FIRST\') {',
+          '      $at1 = 0;',
+          '    } else if ($where1 == \'LAST\') {',
+          '      $at1 = strlen($text) - 1;',
+          '    } else { $at1 = 0; }',
+          '  return substr($text, $at1, $at2);',
+          '}']);
+    var code = functionName + '(' + text + ', \'' +
+        where1 + '\', ' + at1 + ', \'' + where2 + '\', ' + at2 + ')';
+  }
+  return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+};
+
+Blockly.PHP['text_changeCase'] = function(block) {
+  // Change capitalization.
+  var code;
+  if (block.getFieldValue('CASE')=='UPPERCASE') {
+    var argument0 = Blockly.PHP.valueToCode(block, 'TEXT',
+            Blockly.PHP.ORDER_FUNCTION_CALL) || '\'\'';
+    code = 'strtoupper(' + argument0 + ')';
+  } else if (block.getFieldValue('CASE')=='LOWERCASE') {
+    var argument0 = Blockly.PHP.valueToCode(block, 'TEXT',
+            Blockly.PHP.ORDER_FUNCTION_CALL) || '\'\'';
+    code = 'strtolower(' + argument0 + ')';
+  } else if (block.getFieldValue('CASE')=='TITLECASE') {
+    var argument0 = Blockly.PHP.valueToCode(block, 'TEXT',
+            Blockly.PHP.ORDER_FUNCTION_CALL) || '\'\'';
+    code = 'ucwords(strtolower(' + argument0 + '))';
+  }
+  return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
+};
+
+Blockly.PHP['text_trim'] = function(block) {
+  // Trim spaces.
+  var OPERATORS = {
+    'LEFT': 'ltrim',
+    'RIGHT': 'rtrim',
+    'BOTH': 'trim'
+  };
+  var operator = OPERATORS[block.getFieldValue('MODE')];
+  var argument0 = Blockly.PHP.valueToCode(block, 'TEXT',
+      Blockly.PHP.ORDER_ATOMIC) || '\'\'';
+  return [ operator + '(' + argument0 + ')', Blockly.PHP.ORDER_ATOMIC];
+};
+
+Blockly.PHP['text_print'] = function(block) {
+  // Print statement.
+  var argument0 = Blockly.PHP.valueToCode(block, 'TEXT',
+      Blockly.PHP.ORDER_NONE) || '\'\'';
+  return 'print(' + argument0 + ');\n';
+};
+
+Blockly.PHP['text_prompt'] = function(block) {
+  // Prompt function (internal message).
+  var msg = Blockly.PHP.quote_(block.getFieldValue('TEXT'));
+  var code = 'readline(' + msg + ')';
+  var toNumber = block.getFieldValue('TYPE') == 'NUMBER';
+  if (toNumber) {
+    code = 'floatval(' + code + ')';
+  }
+  return [code, Blockly.PHP.ORDER_ATOMIC];
+};
+
+Blockly.PHP['text_prompt_ext'] = function(block) {
+  // Prompt function (external message).
+  var msg = Blockly.PHP.valueToCode(block, 'TEXT',
+      Blockly.PHP.ORDER_ATOMIC) || '\'\'';
+  var code = 'readline(' + msg + ')';
+  var toNumber = block.getFieldValue('TYPE') == 'NUMBER';
+  if (toNumber) {
+    code = 'floatval(' + code + ')';
+  }
+  return [code, Blockly.PHP.ORDER_ATOMIC];
+};
diff --git a/generators/php/variables.js b/generators/php/variables.js
new file mode 100644
index 000000000..dd68f4ead
--- /dev/null
+++ b/generators/php/variables.js
@@ -0,0 +1,46 @@
+/**
+ * @license
+ * Visual Blocks Language
+ *
+ * Copyright 2015 Google Inc.
+ * https://developers.google.com/blockly/
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @fileoverview Generating PHP for variable blocks.
+ * @author daarond@gmail.com (Daaron Dwyer)
+ */
+'use strict';
+
+goog.provide('Blockly.PHP.variables');
+
+goog.require('Blockly.PHP');
+
+
+Blockly.PHP['variables_get'] = function(block) {
+    // Variable getter.
+    var code = Blockly.PHP.variableDB_.getName(block.getFieldValue('VAR'),
+        Blockly.Variables.NAME_TYPE);
+    return [code, Blockly.PHP.ORDER_ATOMIC];
+};
+
+Blockly.PHP['variables_set'] = function(block) {
+    // Variable setter.
+    var argument0 = Blockly.PHP.valueToCode(block, 'VALUE',
+            Blockly.PHP.ORDER_ASSIGNMENT) || '0';
+    var varName = Blockly.PHP.variableDB_.getName(
+        block.getFieldValue('VAR'), Blockly.Variables.NAME_TYPE);
+    return varName + ' = ' + argument0 + ';\n';
+};
\ No newline at end of file
diff --git a/php_compressed.js b/php_compressed.js
new file mode 100644
index 000000000..f5ee24777
--- /dev/null
+++ b/php_compressed.js
@@ -0,0 +1,89 @@
+// Do not edit this file; automatically generated by build.py.
+"use strict";
+
+
+// Copyright 2012 Google Inc.  Apache License 2.0
+Blockly.PHP=new Blockly.Generator("PHP");Blockly.PHP.addReservedWords("Blockly,break,case,catch,continue,debugger,default,delete,do,else,finally,for,function,if,in,instanceof,new,return,switch,this,throw,try,typeof,var,void,while,with,class,enum,export,extends,import,super,implements,interface,let,package,private,protected,public,static,yield,const,null,true,false,Array,ArrayBuffer,Boolean,Date,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,Error,eval,EvalError,Float32Array,Float64Array,Function,Infinity,Int16Array,Int32Array,Int8Array,isFinite,isNaN,Iterator,JSON,Math,NaN,Number,Object,parseFloat,parseInt,RangeError,ReferenceError,RegExp,StopIteration,String,SyntaxError,TypeError,Uint16Array,Uint32Array,Uint8Array,Uint8ClampedArray,undefined,uneval,URIError,applicationCache,closed,Components,content,_content,controllers,crypto,defaultStatus,dialogArguments,directories,document,frameElement,frames,fullScreen,globalStorage,history,innerHeight,innerWidth,length,location,locationbar,localStorage,menubar,messageManager,mozAnimationStartTime,mozInnerScreenX,mozInnerScreenY,mozPaintCount,name,navigator,opener,outerHeight,outerWidth,pageXOffset,pageYOffset,parent,performance,personalbar,pkcs11,returnValue,screen,screenX,screenY,scrollbars,scrollMaxX,scrollMaxY,scrollX,scrollY,self,sessionStorage,sidebar,status,statusbar,toolbar,top,URL,window,addEventListener,alert,atob,back,blur,btoa,captureEvents,clearImmediate,clearInterval,clearTimeout,close,confirm,disableExternalCapture,dispatchEvent,dump,enableExternalCapture,escape,find,focus,forward,GeckoActiveXObject,getAttention,getAttentionWithCycleCount,getComputedStyle,getSelection,home,matchMedia,maximize,minimize,moveBy,moveTo,mozRequestAnimationFrame,open,openDialog,postMessage,print,prompt,QueryInterface,releaseEvents,removeEventListener,resizeBy,resizeTo,restore,routeEvent,scroll,scrollBy,scrollByLines,scrollByPages,scrollTo,setCursor,setImmediate,setInterval,setResizable,setTimeout,showModalDialog,sizeToContent,stop,unescape,updateCommands,XPCNativeWrapper,XPCSafeJSObjectWrapper,onabort,onbeforeunload,onblur,onchange,onclick,onclose,oncontextmenu,ondevicemotion,ondeviceorientation,ondragdrop,onerror,onfocus,onhashchange,onkeydown,onkeypress,onkeyup,onload,onmousedown,onmousemove,onmouseout,onmouseover,onmouseup,onmozbeforepaint,onpaint,onpopstate,onreset,onresize,onscroll,onselect,onsubmit,onunload,onpageshow,onpagehide,Image,Option,Worker,Event,Range,File,FileReader,Blob,BlobBuilder,Attr,CDATASection,CharacterData,Comment,console,DocumentFragment,DocumentType,DomConfiguration,DOMError,DOMErrorHandler,DOMException,DOMImplementation,DOMImplementationList,DOMImplementationRegistry,DOMImplementationSource,DOMLocator,DOMObject,DOMString,DOMStringList,DOMTimeStamp,DOMUserData,Entity,EntityReference,MediaQueryList,MediaQueryListListener,NameList,NamedNodeMap,Node,NodeFilter,NodeIterator,NodeList,Notation,Plugin,PluginArray,ProcessingInstruction,SharedWorker,Text,TimeRanges,Treewalker,TypeInfo,UserDataHandler,Worker,WorkerGlobalScope,HTMLDocument,HTMLElement,HTMLAnchorElement,HTMLAppletElement,HTMLAudioElement,HTMLAreaElement,HTMLBaseElement,HTMLBaseFontElement,HTMLBodyElement,HTMLBRElement,HTMLButtonElement,HTMLCanvasElement,HTMLDirectoryElement,HTMLDivElement,HTMLDListElement,HTMLEmbedElement,HTMLFieldSetElement,HTMLFontElement,HTMLFormElement,HTMLFrameElement,HTMLFrameSetElement,HTMLHeadElement,HTMLHeadingElement,HTMLHtmlElement,HTMLHRElement,HTMLIFrameElement,HTMLImageElement,HTMLInputElement,HTMLKeygenElement,HTMLLabelElement,HTMLLIElement,HTMLLinkElement,HTMLMapElement,HTMLMenuElement,HTMLMetaElement,HTMLModElement,HTMLObjectElement,HTMLOListElement,HTMLOptGroupElement,HTMLOptionElement,HTMLOutputElement,HTMLParagraphElement,HTMLParamElement,HTMLPreElement,HTMLQuoteElement,HTMLScriptElement,HTMLSelectElement,HTMLSourceElement,HTMLSpanElement,HTMLStyleElement,HTMLTableElement,HTMLTableCaptionElement,HTMLTableCellElement,HTMLTableDataCellElement,HTMLTableHeaderCellElement,HTMLTableColElement,HTMLTableRowElement,HTMLTableSectionElement,HTMLTextAreaElement,HTMLTimeElement,HTMLTitleElement,HTMLTrackElement,HTMLUListElement,HTMLUnknownElement,HTMLVideoElement,HTMLCanvasElement,CanvasRenderingContext2D,CanvasGradient,CanvasPattern,TextMetrics,ImageData,CanvasPixelArray,HTMLAudioElement,HTMLVideoElement,NotifyAudioAvailableEvent,HTMLCollection,HTMLAllCollection,HTMLFormControlsCollection,HTMLOptionsCollection,HTMLPropertiesCollection,DOMTokenList,DOMSettableTokenList,DOMStringMap,RadioNodeList,SVGDocument,SVGElement,SVGAElement,SVGAltGlyphElement,SVGAltGlyphDefElement,SVGAltGlyphItemElement,SVGAnimationElement,SVGAnimateElement,SVGAnimateColorElement,SVGAnimateMotionElement,SVGAnimateTransformElement,SVGSetElement,SVGCircleElement,SVGClipPathElement,SVGColorProfileElement,SVGCursorElement,SVGDefsElement,SVGDescElement,SVGEllipseElement,SVGFilterElement,SVGFilterPrimitiveStandardAttributes,SVGFEBlendElement,SVGFEColorMatrixElement,SVGFEComponentTransferElement,SVGFECompositeElement,SVGFEConvolveMatrixElement,SVGFEDiffuseLightingElement,SVGFEDisplacementMapElement,SVGFEDistantLightElement,SVGFEFloodElement,SVGFEGaussianBlurElement,SVGFEImageElement,SVGFEMergeElement,SVGFEMergeNodeElement,SVGFEMorphologyElement,SVGFEOffsetElement,SVGFEPointLightElement,SVGFESpecularLightingElement,SVGFESpotLightElement,SVGFETileElement,SVGFETurbulenceElement,SVGComponentTransferFunctionElement,SVGFEFuncRElement,SVGFEFuncGElement,SVGFEFuncBElement,SVGFEFuncAElement,SVGFontElement,SVGFontFaceElement,SVGFontFaceFormatElement,SVGFontFaceNameElement,SVGFontFaceSrcElement,SVGFontFaceUriElement,SVGForeignObjectElement,SVGGElement,SVGGlyphElement,SVGGlyphRefElement,SVGGradientElement,SVGLinearGradientElement,SVGRadialGradientElement,SVGHKernElement,SVGImageElement,SVGLineElement,SVGMarkerElement,SVGMaskElement,SVGMetadataElement,SVGMissingGlyphElement,SVGMPathElement,SVGPathElement,SVGPatternElement,SVGPolylineElement,SVGPolygonElement,SVGRectElement,SVGScriptElement,SVGStopElement,SVGStyleElement,SVGSVGElement,SVGSwitchElement,SVGSymbolElement,SVGTextElement,SVGTextPathElement,SVGTitleElement,SVGTRefElement,SVGTSpanElement,SVGUseElement,SVGViewElement,SVGVKernElement,SVGAngle,SVGColor,SVGICCColor,SVGElementInstance,SVGElementInstanceList,SVGLength,SVGLengthList,SVGMatrix,SVGNumber,SVGNumberList,SVGPaint,SVGPoint,SVGPointList,SVGPreserveAspectRatio,SVGRect,SVGStringList,SVGTransform,SVGTransformList,SVGAnimatedAngle,SVGAnimatedBoolean,SVGAnimatedEnumeration,SVGAnimatedInteger,SVGAnimatedLength,SVGAnimatedLengthList,SVGAnimatedNumber,SVGAnimatedNumberList,SVGAnimatedPreserveAspectRatio,SVGAnimatedRect,SVGAnimatedString,SVGAnimatedTransformList,SVGPathSegList,SVGPathSeg,SVGPathSegArcAbs,SVGPathSegArcRel,SVGPathSegClosePath,SVGPathSegCurvetoCubicAbs,SVGPathSegCurvetoCubicRel,SVGPathSegCurvetoCubicSmoothAbs,SVGPathSegCurvetoCubicSmoothRel,SVGPathSegCurvetoQuadraticAbs,SVGPathSegCurvetoQuadraticRel,SVGPathSegCurvetoQuadraticSmoothAbs,SVGPathSegCurvetoQuadraticSmoothRel,SVGPathSegLinetoAbs,SVGPathSegLinetoHorizontalAbs,SVGPathSegLinetoHorizontalRel,SVGPathSegLinetoRel,SVGPathSegLinetoVerticalAbs,SVGPathSegLinetoVerticalRel,SVGPathSegMovetoAbs,SVGPathSegMovetoRel,ElementTimeControl,TimeEvent,SVGAnimatedPathData,SVGAnimatedPoints,SVGColorProfileRule,SVGCSSRule,SVGExternalResourcesRequired,SVGFitToViewBox,SVGLangSpace,SVGLocatable,SVGRenderingIntent,SVGStylable,SVGTests,SVGTextContentElement,SVGTextPositioningElement,SVGTransformable,SVGUnitTypes,SVGURIReference,SVGViewSpec,SVGZoomAndPan");
+Blockly.PHP.ORDER_ATOMIC=0;Blockly.PHP.ORDER_MEMBER=1;Blockly.PHP.ORDER_NEW=1;Blockly.PHP.ORDER_FUNCTION_CALL=2;Blockly.PHP.ORDER_INCREMENT=3;Blockly.PHP.ORDER_DECREMENT=3;Blockly.PHP.ORDER_LOGICAL_NOT=4;Blockly.PHP.ORDER_BITWISE_NOT=4;Blockly.PHP.ORDER_UNARY_PLUS=4;Blockly.PHP.ORDER_UNARY_NEGATION=4;Blockly.PHP.ORDER_TYPEOF=4;Blockly.PHP.ORDER_VOID=4;Blockly.PHP.ORDER_DELETE=4;Blockly.PHP.ORDER_MULTIPLICATION=5;Blockly.PHP.ORDER_DIVISION=5;Blockly.PHP.ORDER_MODULUS=5;Blockly.PHP.ORDER_ADDITION=6;
+Blockly.PHP.ORDER_SUBTRACTION=6;Blockly.PHP.ORDER_BITWISE_SHIFT=7;Blockly.PHP.ORDER_RELATIONAL=8;Blockly.PHP.ORDER_IN=8;Blockly.PHP.ORDER_INSTANCEOF=8;Blockly.PHP.ORDER_EQUALITY=9;Blockly.PHP.ORDER_BITWISE_AND=10;Blockly.PHP.ORDER_BITWISE_XOR=11;Blockly.PHP.ORDER_BITWISE_OR=12;Blockly.PHP.ORDER_LOGICAL_AND=13;Blockly.PHP.ORDER_LOGICAL_OR=14;Blockly.PHP.ORDER_CONDITIONAL=15;Blockly.PHP.ORDER_ASSIGNMENT=16;Blockly.PHP.ORDER_COMMA=17;Blockly.PHP.ORDER_NONE=99;
+Blockly.PHP.init=function(a){Blockly.PHP.definitions_=Object.create(null);Blockly.PHP.functionNames_=Object.create(null);Blockly.PHP.variableDB_?Blockly.PHP.variableDB_.reset():Blockly.PHP.variableDB_=new Blockly.Names(Blockly.PHP.RESERVED_WORDS_,!0);var b=[];a=Blockly.Variables.allVariables(a);for(var c=0;c",GTE:">="}[a.getFieldValue("OP")],c="=="==b||"!="==b?Blockly.PHP.ORDER_EQUALITY:Blockly.PHP.ORDER_RELATIONAL,d=Blockly.PHP.valueToCode(a,"A",c)||"0";a=Blockly.PHP.valueToCode(a,"B",c)||"0";return[d+" "+b+" "+a,c]};
+Blockly.PHP.logic_operation=function(a){var b="AND"==a.getFieldValue("OP")?"&&":"||",c="&&"==b?Blockly.PHP.ORDER_LOGICAL_AND:Blockly.PHP.ORDER_LOGICAL_OR,d=Blockly.PHP.valueToCode(a,"A",c);a=Blockly.PHP.valueToCode(a,"B",c);if(d||a){var e="&&"==b?"true":"false";d||(d=e);a||(a=e)}else a=d="false";return[d+" "+b+" "+a,c]};Blockly.PHP.logic_negate=function(a){var b=Blockly.PHP.ORDER_LOGICAL_NOT;return["!"+(Blockly.PHP.valueToCode(a,"BOOL",b)||"true"),b]};
+Blockly.PHP.logic_boolean=function(a){return["TRUE"==a.getFieldValue("BOOL")?"true":"false",Blockly.PHP.ORDER_ATOMIC]};Blockly.PHP.logic_null=function(a){return["null",Blockly.PHP.ORDER_ATOMIC]};Blockly.PHP.logic_ternary=function(a){var b=Blockly.PHP.valueToCode(a,"IF",Blockly.PHP.ORDER_CONDITIONAL)||"false",c=Blockly.PHP.valueToCode(a,"THEN",Blockly.PHP.ORDER_CONDITIONAL)||"null";a=Blockly.PHP.valueToCode(a,"ELSE",Blockly.PHP.ORDER_CONDITIONAL)||"null";return[b+" ? "+c+" : "+a,Blockly.PHP.ORDER_CONDITIONAL]};
+// Copyright 2015 Google Inc.  Apache License 2.0
+Blockly.PHP.loops={};Blockly.PHP.controls_repeat=function(a){var b=Number(a.getFieldValue("TIMES")),c=Blockly.PHP.statementToCode(a,"DO"),c=Blockly.PHP.addLoopTrap(c,a.id);a=Blockly.PHP.variableDB_.getDistinctName("count",Blockly.Variables.NAME_TYPE);return"for ("+a+" = 0; "+a+" < "+b+"; "+a+"++) {\n"+c+"}\n"};
+Blockly.PHP.controls_repeat_ext=function(a){var b=Blockly.PHP.valueToCode(a,"TIMES",Blockly.PHP.ORDER_ASSIGNMENT)||"0",c=Blockly.PHP.statementToCode(a,"DO"),c=Blockly.PHP.addLoopTrap(c,a.id);a="";var d=Blockly.PHP.variableDB_.getDistinctName("count",Blockly.Variables.NAME_TYPE),e=b;b.match(/^\w+$/)||Blockly.isNumber(b)||(e=Blockly.PHP.variableDB_.getDistinctName("repeat_end",Blockly.Variables.NAME_TYPE),a+=e+" = "+b+";\n");return a+("for ("+d+" = 0; "+d+" < "+e+"; "+d+"++) {\n"+c+"}\n")};
+Blockly.PHP.controls_whileUntil=function(a){var b="UNTIL"==a.getFieldValue("MODE"),c=Blockly.PHP.valueToCode(a,"BOOL",b?Blockly.PHP.ORDER_LOGICAL_NOT:Blockly.PHP.ORDER_NONE)||"false",d=Blockly.PHP.statementToCode(a,"DO"),d=Blockly.PHP.addLoopTrap(d,a.id);b&&(c="!"+c);return"while ("+c+") {\n"+d+"}\n"};
+Blockly.PHP.controls_for=function(a){var b=Blockly.PHP.variableDB_.getName(a.getFieldValue("VAR"),Blockly.Variables.NAME_TYPE),c=Blockly.PHP.valueToCode(a,"FROM",Blockly.PHP.ORDER_ASSIGNMENT)||"0",d=Blockly.PHP.valueToCode(a,"TO",Blockly.PHP.ORDER_ASSIGNMENT)||"0",e=Blockly.PHP.valueToCode(a,"BY",Blockly.PHP.ORDER_ASSIGNMENT)||"1",f=Blockly.PHP.statementToCode(a,"DO"),f=Blockly.PHP.addLoopTrap(f,a.id);if(Blockly.isNumber(c)&&Blockly.isNumber(d)&&Blockly.isNumber(e)){var g=parseFloat(c)<=parseFloat(d);
+a="for ("+b+" = "+c+"; "+b+(g?" <= ":" >= ")+d+"; "+b;b=Math.abs(parseFloat(e));a=(1==b?a+(g?"++":"--"):a+((g?" += ":" -= ")+b))+(") {\n"+f+"}\n")}else a="",g=c,c.match(/^\w+$/)||Blockly.isNumber(c)||(g=Blockly.PHP.variableDB_.getDistinctName(b+"_start",Blockly.Variables.NAME_TYPE),a+=g+" = "+c+";\n"),c=d,d.match(/^\w+$/)||Blockly.isNumber(d)||(c=Blockly.PHP.variableDB_.getDistinctName(b+"_end",Blockly.Variables.NAME_TYPE),a+=c+" = "+d+";\n"),d=Blockly.PHP.variableDB_.getDistinctName(b+"_inc",Blockly.Variables.NAME_TYPE),
+a+=d+" = ",a=Blockly.isNumber(e)?a+(Math.abs(e)+";\n"):a+("abs("+e+");\n"),a+="if ("+g+" > "+c+") {\n",a+=Blockly.PHP.INDENT+d+" = -"+d+";\n",a+="}\n",a+="for ("+b+" = "+g+";\n     "+d+" >= 0 ? "+b+" <= "+c+" : "+b+" >= "+c+";\n     "+b+" += "+d+") {\n"+f+"}\n";return a};
+Blockly.PHP.controls_forEach=function(a){var b=Blockly.PHP.variableDB_.getName(a.getFieldValue("VAR"),Blockly.Variables.NAME_TYPE),c=Blockly.PHP.valueToCode(a,"LIST",Blockly.PHP.ORDER_ASSIGNMENT)||"[]",d=Blockly.PHP.statementToCode(a,"DO"),d=Blockly.PHP.addLoopTrap(d,a.id);return""+("foreach ("+c+" as "+b+") {\n"+d+"}\n")};
+Blockly.PHP.controls_flow_statements=function(a){switch(a.getFieldValue("FLOW")){case "BREAK":return"break;\n";case "CONTINUE":return"continue;\n"}throw"Unknown flow statement.";};
+// Copyright 2015 Google Inc.  Apache License 2.0
+Blockly.PHP.math={};Blockly.PHP.math_number=function(a){return[parseFloat(a.getFieldValue("NUM")),Blockly.PHP.ORDER_ATOMIC]};
+Blockly.PHP.math_arithmetic=function(a){var b={ADD:[" + ",Blockly.PHP.ORDER_ADDITION],MINUS:[" - ",Blockly.PHP.ORDER_SUBTRACTION],MULTIPLY:[" * ",Blockly.PHP.ORDER_MULTIPLICATION],DIVIDE:[" / ",Blockly.PHP.ORDER_DIVISION],POWER:[null,Blockly.PHP.ORDER_COMMA]}[a.getFieldValue("OP")],c=b[0],b=b[1],d=Blockly.PHP.valueToCode(a,"A",b)||"0";a=Blockly.PHP.valueToCode(a,"B",b)||"0";return c?[d+c+a,b]:["pow("+d+", "+a+")",Blockly.PHP.ORDER_FUNCTION_CALL]};
+Blockly.PHP.math_single=function(a){var b=a.getFieldValue("OP"),c;if("NEG"==b)return a=Blockly.PHP.valueToCode(a,"NUM",Blockly.PHP.ORDER_UNARY_NEGATION)||"0","-"==a[0]&&(a=" "+a),["-"+a,Blockly.PHP.ORDER_UNARY_NEGATION];a="SIN"==b||"COS"==b||"TAN"==b?Blockly.PHP.valueToCode(a,"NUM",Blockly.PHP.ORDER_DIVISION)||"0":Blockly.PHP.valueToCode(a,"NUM",Blockly.PHP.ORDER_NONE)||"0";switch(b){case "ABS":c="abs("+a+")";break;case "ROOT":c="sqrt("+a+")";break;case "LN":c="log("+a+")";break;case "EXP":c="exp("+
+a+")";break;case "POW10":c="pow(10,"+a+")";break;case "ROUND":c="round("+a+")";break;case "ROUNDUP":c="ceil("+a+")";break;case "ROUNDDOWN":c="floor("+a+")";break;case "SIN":c="sin("+a+" / 180 * pi())";break;case "COS":c="cos("+a+" / 180 * pi())";break;case "TAN":c="tan("+a+" / 180 * pi())"}if(c)return[c,Blockly.PHP.ORDER_FUNCTION_CALL];switch(b){case "LOG10":c="log("+a+") / log(10)";break;case "ASIN":c="asin("+a+") / pi() * 180";break;case "ACOS":c="acos("+a+") / pi() * 180";break;case "ATAN":c="atan("+
+a+") / pi() * 180";break;default:throw"Unknown math operator: "+b;}return[c,Blockly.PHP.ORDER_DIVISION]};Blockly.PHP.math_constant=function(a){return{PI:["M_PI",Blockly.PHP.ORDER_ATOMIC],E:["M_E",Blockly.PHP.ORDER_ATOMIC],GOLDEN_RATIO:["(1 + sqrt(5)) / 2",Blockly.PHP.ORDER_DIVISION],SQRT2:["M_SQRT2",Blockly.PHP.ORDER_ATOMIC],SQRT1_2:["M_SQRT1_2",Blockly.PHP.ORDER_ATOMIC],INFINITY:["INF",Blockly.PHP.ORDER_ATOMIC]}[a.getFieldValue("CONSTANT")]};
+Blockly.PHP.math_number_property=function(a){var b=Blockly.PHP.valueToCode(a,"NUMBER_TO_CHECK",Blockly.PHP.ORDER_MODULUS)||"0",c=a.getFieldValue("PROPERTY"),d;if("PRIME"==c)return d=Blockly.PHP.provideFunction_("math_isPrime",["function "+Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_+"($n) {","  // https://en.wikipedia.org/wiki/Primality_test#Naive_methods","  if ($n == 2 || $n == 3) {","    return true;","  }","  // False if n is NaN, negative, is 1, or not whole.","  // And false if n is divisible by 2 or 3.",
+"  if (!is_numeric($n) || $n <= 1 || $n % 1 != 0 || $n % 2 == 0 || $n % 3 == 0) {","    return false;","  }","  // Check all the numbers of form 6k +/- 1, up to sqrt(n).","  for ($x = 6; $x <= sqrt($n) + 1; $x += 6) {","    if ($n % ($x - 1) == 0 || $n % ($x + 1) == 0) {","      return false;","    }","  }","  return true;","}"])+"("+b+")",[d,Blockly.JavaScript.ORDER_FUNCTION_CALL];switch(c){case "EVEN":d=b+" % 2 == 0";break;case "ODD":d=b+" % 2 == 1";break;case "WHOLE":d="is_int("+b+")";break;case "POSITIVE":d=
+b+" > 0";break;case "NEGATIVE":d=b+" < 0";break;case "DIVISIBLE_BY":a=Blockly.PHP.valueToCode(a,"DIVISOR",Blockly.PHP.ORDER_MODULUS)||"0",d=b+" % "+a+" == 0"}return[d,Blockly.PHP.ORDER_EQUALITY]};Blockly.PHP.math_change=function(a){var b=Blockly.PHP.valueToCode(a,"DELTA",Blockly.PHP.ORDER_ADDITION)||"0";return Blockly.PHP.variableDB_.getName(a.getFieldValue("VAR"),Blockly.Variables.NAME_TYPE)+" += "+b+";\n"};Blockly.PHP.math_round=Blockly.PHP.math_single;Blockly.PHP.math_trig=Blockly.PHP.math_single;
+Blockly.PHP.math_on_list=function(a){var b=a.getFieldValue("OP");switch(b){case "SUM":a=Blockly.PHP.valueToCode(a,"LIST",Blockly.PHP.ORDER_FUNCTION_CALL)||"array()";a="array_sum("+a+")";break;case "MIN":a=Blockly.PHP.valueToCode(a,"LIST",Blockly.PHP.ORDER_FUNCTION_CALL)||"array()";a="min("+a+")";break;case "MAX":a=Blockly.PHP.valueToCode(a,"LIST",Blockly.PHP.ORDER_FUNCTION_CALL)||"array()";a="max("+a+")";break;case "AVERAGE":b=Blockly.PHP.provideFunction_("math_mean",["function "+Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_+
+"($myList) {","  return array_sum($myList) / count($myList);","}"]);a=Blockly.PHP.valueToCode(a,"LIST",Blockly.PHP.ORDER_NONE)||"array()";a=b+"("+a+")";break;case "MEDIAN":b=Blockly.PHP.provideFunction_("math_median",["function "+Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_+"($arr) {","  sort($arr,SORT_NUMERIC);","  return (count($arr) % 2) ? $arr[floor(count($arr)/2)] : ","      ($arr[floor(count($arr)/2)] + $arr[floor(count($arr)/2) - 1]) / 2;","}"]);a=Blockly.PHP.valueToCode(a,"LIST",Blockly.PHP.ORDER_NONE)||
+"[]";a=b+"("+a+")";break;case "MODE":b=Blockly.PHP.provideFunction_("math_modes",["function "+Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_+"($values) {","  $v = array_count_values($values);","  arsort($v);","  foreach($v as $k => $v){$total = $k; break;}","  return array($total);","}"]);a=Blockly.PHP.valueToCode(a,"LIST",Blockly.PHP.ORDER_NONE)||"[]";a=b+"("+a+")";break;case "STD_DEV":b=Blockly.PHP.provideFunction_("math_standard_deviation",["function "+Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_+"($numbers) {",
+"  $n = count($numbers);","  if (!$n) return null;","  $mean = array_sum($numbers) / count($numbers);","  foreach($numbers as $key => $num) $devs[$key] = pow($num - $mean, 2);","  return sqrt(array_sum($devs) / (count($devs) - 1));","}"]);a=Blockly.PHP.valueToCode(a,"LIST",Blockly.PHP.ORDER_NONE)||"[]";a=b+"("+a+")";break;case "RANDOM":b=Blockly.PHP.provideFunction_("math_random_list",["function "+Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_+"($list) {","  $x = rand(0, count($list)-1);","  return $list[$x];",
+"}"]);a=Blockly.PHP.valueToCode(a,"LIST",Blockly.PHP.ORDER_NONE)||"[]";a=b+"("+a+")";break;default:throw"Unknown operator: "+b;}return[a,Blockly.PHP.ORDER_FUNCTION_CALL]};Blockly.PHP.math_modulo=function(a){var b=Blockly.PHP.valueToCode(a,"DIVIDEND",Blockly.PHP.ORDER_MODULUS)||"0";a=Blockly.PHP.valueToCode(a,"DIVISOR",Blockly.PHP.ORDER_MODULUS)||"0";return[b+" % "+a,Blockly.PHP.ORDER_MODULUS]};
+Blockly.PHP.math_constrain=function(a){var b=Blockly.PHP.valueToCode(a,"VALUE",Blockly.PHP.ORDER_COMMA)||"0",c=Blockly.PHP.valueToCode(a,"LOW",Blockly.PHP.ORDER_COMMA)||"0";a=Blockly.PHP.valueToCode(a,"HIGH",Blockly.PHP.ORDER_COMMA)||"Infinity";return["min(max("+b+", "+c+"), "+a+")",Blockly.PHP.ORDER_FUNCTION_CALL]};
+Blockly.PHP.math_random_int=function(a){var b=Blockly.PHP.valueToCode(a,"FROM",Blockly.PHP.ORDER_COMMA)||"0";a=Blockly.PHP.valueToCode(a,"TO",Blockly.PHP.ORDER_COMMA)||"0";return[Blockly.PHP.provideFunction_("math_random_int",["function "+Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_+"($a, $b) {","  if ($a > $b) {","    return rand($b, $a);","  }","  return rand($a, $b);","}"])+"("+b+", "+a+")",Blockly.PHP.ORDER_FUNCTION_CALL]};
+Blockly.PHP.math_random_float=function(a){return["(float)rand()/(float)getrandmax()",Blockly.PHP.ORDER_FUNCTION_CALL]};
+// Copyright 2015 Google Inc.  Apache License 2.0
+Blockly.PHP.procedures={};
+Blockly.PHP.procedures_defreturn=function(a){for(var b=Blockly.Variables.allVariables(a),c=b.length-1;0<=c;c--){var d=b[c];-1==a.arguments_.indexOf(d)?b[c]=Blockly.PHP.variableDB_.getName(d,Blockly.Variables.NAME_TYPE):b.splice(c,1)}b=b.length?"  global "+b.join(", ")+";\n":"";c=Blockly.PHP.variableDB_.getName(a.getFieldValue("NAME"),Blockly.Procedures.NAME_TYPE);d=Blockly.PHP.statementToCode(a,"STACK");Blockly.PHP.STATEMENT_PREFIX&&(d=Blockly.PHP.prefixLines(Blockly.PHP.STATEMENT_PREFIX.replace(/%1/g,"'"+
+a.id+"'"),Blockly.PHP.INDENT)+d);Blockly.PHP.INFINITE_LOOP_TRAP&&(d=Blockly.PHP.INFINITE_LOOP_TRAP.replace(/%1/g,"'"+a.id+"'")+d);var e=Blockly.PHP.valueToCode(a,"RETURN",Blockly.PHP.ORDER_NONE)||"";e&&(e="  return "+e+";\n");for(var f=[],g=0;g
 
 
+
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+
 
 
 
@@ -126,6 +138,11 @@ function toPython() {
   setOutput(code);
 }
 
+function toPhp() {
+  var code = Blockly.PHP.workspaceToCode(workspace);
+  setOutput(code);
+}
+
 function toDart() {
   var code = Blockly.Dart.workspaceToCode(workspace);
   setOutput(code);
@@ -406,6 +423,7 @@ h1 {
       
       
       
+      
       
     

   
diff --git a/tests/generators/unittest_php.js b/tests/generators/unittest_php.js
new file mode 100644
index 000000000..429831ae9
--- /dev/null
+++ b/tests/generators/unittest_php.js
@@ -0,0 +1,162 @@
+/**
+ * @license
+ * Visual Blocks Language
+ *
+ * Copyright 2015 Google Inc.
+ * https://developers.google.com/blockly/
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @fileoverview Generating PHP for unit test blocks.
+ * @author daarond@gmail.com (Daaron Dwyer)
+ */
+'use strict';
+
+Blockly.PHP['unittest_main'] = function(block) {
+    // Container for unit tests.
+    var resultsVar = Blockly.PHP.variableDB_.getName('unittestResults',
+        Blockly.Variables.NAME_TYPE);
+    var functionName = Blockly.PHP.provideFunction_(
+        'unittest_report',
+        [ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ + '() {',
+            'global ' + resultsVar + ';',
+            '  // Create test report.',
+            '  $report = array();',
+            '  $summary = array();',
+            '  $fails = 0;',
+            '  for ($x = 0; $x < count(' + resultsVar + '); $x++) {',
+            '    if (' + resultsVar + '[$x][0]) {',
+            '      array_push($summary, ".");',
+            '    } else {',
+            '      array_push($summary, "F");',
+            '      $fails++;',
+            '      array_push($report,"");',
+            '      array_push($report, "FAIL: " . ' + resultsVar + '[$x][2]);',
+            '      array_push($report, ' + resultsVar + '[$x][1]);',
+            '    }',
+            '  }',
+            '  array_unshift($report, implode("",$summary));',
+            '  array_push($report, "");',
+            '  array_push($report, "Number of tests run: " . count(' + resultsVar + '));',
+            '  array_push($report, "");',
+            '  if ($fails) {',
+            '    array_push($report, "FAILED (failures=" . $fails + ")");',
+            '  } else {',
+            '    array_push($report, "OK");',
+            '  }',
+            '  return implode("\\n", $report);',
+            '}']);
+    // Setup global to hold test results.
+    var code = resultsVar + ' = array();\n';
+    // Run tests (unindented).
+    code += Blockly.PHP.statementToCode(block, 'DO')
+        .replace(/^  /, '').replace(/\n  /g, '\n');
+    var reportVar = Blockly.PHP.variableDB_.getDistinctName(
+        'report', Blockly.Variables.NAME_TYPE);
+    code += reportVar + ' = ' + functionName + '();\n';
+    // Destroy results.
+    code += resultsVar + ' = null;\n';
+    // Send the report to the console (that's where errors will go anyway).
+    code += 'print(' + reportVar + ');\n';
+    return code;
+};
+
+Blockly.PHP['unittest_main'].defineAssert_ = function(block) {
+    var resultsVar = Blockly.PHP.variableDB_.getName('unittestResults',
+        Blockly.Variables.NAME_TYPE);
+    var functionName = Blockly.PHP.provideFunction_(
+        'assertEquals',
+        [   '  function equals($a, $b) {',
+            '    if ($a === $b) {',
+            '      return true;',
+            '    } else if ((is_numeric($a)) && (is_numeric($b)) &&',
+            '        (round($a,15) == round($b,15))) {',
+            '      return true;',
+            '    } else if (is_array($a) && is_array($b)) {',
+            '      if (count($a) != count($b)) {',
+            '        return false;',
+            '      }',
+            '      for ($i = 0; $i < count($a); $i++) {',
+            '        if (!equals($a[$i], $b[$i])) {',
+            '          return false;',
+            '        }',
+            '      }',
+            '      return true;',
+            '    }',
+            '    return false;',
+            '  }',
+            'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
+            '($actual, $expected, $message) {',
+            'global ' + resultsVar + ';',
+            '  // Asserts that a value equals another value.',
+            '  if (!is_array(' + resultsVar + ')) {',
+            '    throw new Exception("Orphaned assert: " . $message);',
+            '  }',
+            '  if (equals($actual, $expected)) {',
+            '    array_push(' + resultsVar + ', [true, "OK", $message]);',
+            '  } else {',
+            '    array_push(' + resultsVar + ', [false, ' +
+            '"Expected: " . $expected . "\\nActual: " . $actual, $message]);',
+            '  }',
+            '}']);
+    return functionName;
+};
+
+Blockly.PHP['unittest_assertequals'] = function(block) {
+    // Asserts that a value equals another value.
+    var message = Blockly.PHP.quote_(block.getFieldValue('MESSAGE'));
+    var actual = Blockly.PHP.valueToCode(block, 'ACTUAL',
+            Blockly.PHP.ORDER_COMMA) || 'null';
+    var expected = Blockly.PHP.valueToCode(block, 'EXPECTED',
+            Blockly.PHP.ORDER_COMMA) || 'null';
+    return Blockly.PHP['unittest_main'].defineAssert_() +
+        '(' + actual + ', ' + expected + ', ' + message + ');\n';
+};
+
+Blockly.PHP['unittest_assertvalue'] = function(block) {
+    // Asserts that a value is true, false, or null.
+    var message = Blockly.PHP.quote_(block.getFieldValue('MESSAGE'));
+    var actual = Blockly.PHP.valueToCode(block, 'ACTUAL',
+            Blockly.PHP.ORDER_COMMA) || 'null';
+    var expected = block.getFieldValue('EXPECTED');
+    if (expected == 'TRUE') {
+        expected = 'true';
+    } else if (expected == 'FALSE') {
+        expected = 'false';
+    } else if (expected == 'NULL') {
+        expected = 'null';
+    }
+    return Blockly.PHP['unittest_main'].defineAssert_() +
+        '(' + actual + ', ' + expected + ', ' + message + ');\n';
+};
+
+Blockly.PHP['unittest_fail'] = function(block) {
+    // Always assert an error.
+    var resultsVar = Blockly.PHP.variableDB_.getName('unittestResults',
+        Blockly.Variables.NAME_TYPE);
+    var message = Blockly.PHP.quote_(block.getFieldValue('MESSAGE'));
+    var functionName = Blockly.PHP.provideFunction_(
+        'unittest_fail',
+        [ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
+        '($message) {',
+            'global ' + resultsVar + ';',
+            '  // Always assert an error.',
+            '  if (!' + resultsVar + ') {',
+            '    throw new Exception("Orphaned assert fail: " . $message);',
+            '  }',
+            '  array_push(' + resultsVar + ', [false, "Fail.", $message]);',
+            '}']);
+    return functionName + '(' + message + ');\n';
+};
diff --git a/tests/playground.html b/tests/playground.html
index b42f4c27f..df1c5e993 100644
--- a/tests/playground.html
+++ b/tests/playground.html
@@ -13,6 +13,15 @@
 
 
 
+
+
+
+
+
+
+
+
+
 
 
 
@@ -40,6 +49,7 @@
 
 
 
+