3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php print_r(array_merge(array('a'=>1, 'b'=>2), array('b'=>3, 'c'=>4));
Output for 5.3.0 - 5.4.7
Parse error: syntax error, unexpected ';' in /in/Letbo on line 2
Process exited with code 255.