run code in 200+ php & hhvm versions
Bugs & Features
<?php $array = array('tttt'=> 100, "color" => "red"); print_r(array_keys($array)[1]);
based on TrOGV

Shows result from various feature-branches currently under review from the php developers. Contact me to have additional branches featured.

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Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page