3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a=array(0=>"red",1=>"green"); array_unshift($a,"blue"); print_r($a); ?>
based on jNmGX
Output for 4.3.0 - 7.2.0
Array ( [0] => blue [1] => red [2] => green )