3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $foo = Array ( 1 => 'nanananana,lol,', 2 => 'laaaaalalalala,asd,', 3 => 'r0tfl,lmfao,ahah,' ); $bar = Array ( 1 => 'dunnoWhat,write,', 3 => 'hello,wooorld,' ); $result = array_diff_key($foo, $bar) + array_combine( $y = array_keys(array_intersect_key($foo, $bar)), array_map(function($x) use ($foo, $bar) { return $foo[$x]."\n".$bar[$x]; }, $y) ) + array_diff_key($bar, $foo); var_dump($result);
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(3) { [2]=> string(19) "laaaaalalalala,asd," [1]=> string(32) "nanananana,lol, dunnoWhat,write," [3]=> string(32) "r0tfl,lmfao,ahah, hello,wooorld," }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/o4N0b on line 20
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/o4N0b on line 20
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/o4N0b on line 20
Process exited with code 255.