3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $array = array(1, "apples",2, "oranges",3, "plums"); // array_filter() $lambda = function( $item ) { if ( ctype_alpha($item) ) { return true; } }; $filtered = array_filter( $array, $lambda); var_dump($filtered); // using array_map() $callback = function($item) { return strtoupper($item); }; $nu = array_map( $callback, $filtered); var_dump($nu); $f = function(&$item,$key,$prefix) { $item = "$key: $prefix: $item"; }; array_walk($nu, $f,"fruit"); var_dump($nu);
based on ajTSK
Output for 5.3.0 - 5.6.21, hhvm-3.12.0, 7.0.0 - 7.1.0
array(3) { [1]=> string(6) "apples" [3]=> string(7) "oranges" [5]=> string(5) "plums" } array(3) { [1]=> string(6) "APPLES" [3]=> string(7) "ORANGES" [5]=> string(5) "PLUMS" } array(3) { [1]=> string(16) "1: fruit: APPLES" [3]=> string(17) "3: fruit: ORANGES" [5]=> string(15) "5: fruit: PLUMS" }
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/61KV0 on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/61KV0 on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/61KV0 on line 5
Process exited with code 255.