3v4l.org

run code in 300+ PHP versions simultaneously
<?php function () {$a = function () use (&$a) { $a(); }; }();
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.29
Parse error: syntax error, unexpected '(' in /in/6ktGn on line 2
Process exited with code 255.
preferences:
183.08 ms | 1395 KiB | 66 Q