3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(array_map(function($x, $y) { return $x.$y; }, array(1=>'1', 2=>'2'), array(2=>'2', 1=>'1', '6')));
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(3) { [0]=> string(2) "12" [1]=> string(2) "21" [2]=> string(1) "6" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/ftJDs 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/ftJDs on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/ftJDs on line 3
Process exited with code 255.