3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php print ksort(array( '13-2014' => 'a', '14-2014' => 'a', '6-2014' => 'a', ));
Output for 5.3.0 - 5.4.31
Fatal error: Only variables can be passed by reference in /in/Np2c3 on line 7
Process exited with code 255.