3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $arr = range(0, 5); $pop = function() use (& $pop, & $arr) { $v = array_pop($arr); if ($v !== null) { var_dump($v); $pop(); } }; $pop(); /* * Expected: * int(5) * int(4) * int(3) * int(2) * int(1) * int(0) * * Actual: * Fatal error: Maximum function nesting level */
based on tALef
Output for 5.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
int(5) int(4) int(3) int(2) int(1) int(0)
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/tOOSC on line 4
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 T_FUNCTION in /in/tOOSC on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/tOOSC on line 4
Process exited with code 255.