3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $array = [ ['a' => 1, 'b' => 2], ['a' => 2, 'b' => 2] ]; $data = ['count'=>0,'a'=>0,'b'=>0]; $cb = function($value, $key) { var_dump($value); }; array_walk($array, $cb, $data);
based on n6tPb
Output for 5.4.0 - 7.2.6
array(2) { ["a"]=> int(1) ["b"]=> int(2) } array(2) { ["a"]=> int(2) ["b"]=> int(2) }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/htuOf on line 3
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 '[' in /in/htuOf on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/htuOf on line 3
Process exited with code 255.