run code in 200+ php & hhvm versions
Bugs & Features
<?php echo strtolower(preg_replace('/([a-zA-Z])\s+=([a-zA-Z])/', '$1_$2', 'algo = algo'));

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

Output for Typed properties v2
algo = algo
Output for Array change keys
algo = algo
Output for Lexical anon
algo = algo

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