3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $Color = array('A' => 'Blue', 'B' => 'Green', 'c' => 'Red'); foreach($Color as $a => $v) { echo strtoupper($v); } ?>
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
BLUEGREENRED