3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = array('a'=>1, 'b'=>2); $z = array_walk($x, function($item){ reutnr $item * 2; }) var_dump($x,$z);
Output for 5.4.0 - 5.4.30
Parse error: syntax error, unexpected '$item' (T_VARIABLE) in /in/pA2iv on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_VARIABLE in /in/pA2iv on line 3
Process exited with code 255.
preferences:
183.13 ms | 1395 KiB | 67 Q