3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "Hello"; $b = function() { echo ",world"; }; $arr = [$a,$b]; array_walk($arr, function($v) { echo $v instanceof; //echo $v; });
Output for 5.4.0 - 5.4.30
Parse error: syntax error, unexpected ';' in /in/qala5 on line 10
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected '[' in /in/qala5 on line 7
Process exited with code 255.

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