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run code in 150+ php & hhvm versions
Bugs & Features
<?php $x = function(){var_dump(func_get_args()); return true;}; $y = array ('foo'=>1,2,3,4); array_filter($y, $x);
Output for 5.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
array(1) { [0]=> int(1) } array(1) { [0]=> int(2) } array(1) { [0]=> int(3) } array(1) { [0]=> int(4) }
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/Djk27 on line 3
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/Djk27 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Djk27 on line 3
Process exited with code 255.