3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $array = array( 'filters'=> array('where'=>array('yr'=>1994))); $keys = array_keys($array['filters']['where']); echo array_shift($keys);
based on QNI7P
Output for 4.3.0 - 5.6.21, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
yr