3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $names = ['[foo]bar', 'baz', '[blarg]blah']; foreach($names as $name) { preg_match('/^(\[.*?\])?(.*)$/', $name, $match); var_dump($match); }
Output for 5.4.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
array(3) { [0]=> string(8) "[foo]bar" [1]=> string(5) "[foo]" [2]=> string(3) "bar" } array(3) { [0]=> string(3) "baz" [1]=> string(0) "" [2]=> string(3) "baz" } array(3) { [0]=> string(11) "[blarg]blah" [1]=> string(7) "[blarg]" [2]=> string(4) "blah" }
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/DhPCh 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 '[' in /in/DhPCh on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/DhPCh on line 3
Process exited with code 255.