3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php print_r(array_map(function ($x, $y) { if ($x % 2) { return ['elems' => [$x, $y]]; } else { return null; } }, [1, 2, 3], ['a', 'b', 'c']));
based on QRtsN
Output for 5.4.0 - 7.2.0
Array ( [0] => Array ( [elems] => Array ( [0] => 1 [1] => a ) ) [1] => [2] => Array ( [elems] => Array ( [0] => 3 [1] => c ) ) )
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/Pf0kt on line 5
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/Pf0kt 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, expecting ')' in /in/Pf0kt on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/Pf0kt on line 3
Process exited with code 255.