3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $arr = array('Test' => 'firstUP', 'test' => 'allNORMAL', 'TEST' => 'allUP'); print array_key_exists('TEsT', $arr);
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
Output for hhvm-3.10.0

Process exited with code 153.