3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $arr = array(); $arr["a"] = "A"; $arr["b"] = "B"; $str = array_filter($arr, function($e1){ echo $e1; return $e1; }); var_dump($str);
based on iCRqh
Output for 5.3.0 - 7.2.0
ABarray(2) { ["a"]=> string(1) "A" ["b"]=> string(1) "B" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/7Ri7b on line 6
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/7Ri7b on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/7Ri7b on line 6
Process exited with code 255.