3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $x = array('x' => 1, '0x9876' => 54321); var_dump($x); var_dump(gettype(key($x)));
Output for 4.3.0 - 7.1.7
array(2) { ["x"]=> int(1) ["0x9876"]=> int(54321) } string(6) "string"