run code in 200+ php & hhvm versions
Bugs & Features
<?php $value = '3.5'; if ($value != '') { $css_class = substr($value, 0, 1) . substr($value, 2, 1); } echo $css_class;
based on Bu0Cq

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

Output for Arrow functions

Archived branches

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