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