3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $iter = 100000; $array = range(0, $iter); $function = function($val, $key) {}; $t = microtime(true); for($i = 0; $i < $iter; $i++) { foreach($array as $key => $val) { $function($val, $key); } } echo 'foreach: '.(microtime(true) - $t).'\n'; $t = microtime(true); for($i = 0; $i < $iter; $i++) { array_walk($array, $function); } echo 'array_walk: '.(microtime(true) - $t).'\n'; $t = microtime(true); for($i = 0; $i < $iter; $i++) { array_map($function, $array, array_keys($array)); } echo 'array_map: '.(microtime(true) - $t).'\n';
Output for 5.3.5 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0

Process exited with code 137.
Output for 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/F6M1o on line 5
Process exited with code 255.