3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = 'a'; $b = 'b'; list($a, $b) = [$b, $a]; var_dump(compact('a', 'b'));
Output for 5.4.0 - 7.1.0
array(2) { ["a"]=> string(1) "b" ["b"]=> string(1) "a" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/NXvos 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 '[' in /in/NXvos on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/NXvos on line 6
Process exited with code 255.