3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [1,2,3,4,5]; var_dump(array_walk($arr, function($value, $key){ echo "%". $value; });
Output for 5.4.0 - 5.4.21
Parse error: syntax error, unexpected ';' in /in/PvWUc on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.27
Parse error: syntax error, unexpected '[' in /in/PvWUc on line 2
Process exited with code 255.
preferences:
188.77 ms | 1395 KiB | 57 Q