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run code in 150+ php & hhvm versions
Bugs & Features
<?php $x = array('a'=>1, 'b'=>2); $z = array_filter($x, function(&$val){ $val = $val%2; return $val; }); var_dump($x,$z);
Output for 7.0.0 - 7.1.0
array(2) { ["a"]=> int(1) ["b"]=> int(2) } array(1) { ["a"]=> int(1) }
Output for 5.3.0 - 5.6.28
array(2) { ["a"]=> int(1) ["b"]=> int(0) } array(1) { ["a"]=> int(1) }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/YMj7P 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/YMj7P on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/YMj7P on line 3
Process exited with code 255.