3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $arr[123] = 1; $arr['123'] = 2; $arr["123"] = 3; print_r($arr);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array ( [123] => 3 )