3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $zz=[['id' => 'ppp']]; print_r(array_merge($zz, ['id']));
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array ( [0] => Array ( [id] => ppp ) [1] => id )
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/F6s1P on line 2
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/F6s1P on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/F6s1P on line 2
Process exited with code 255.