3v4l.org

run code in 300+ PHP versions simultaneously
<?php function getDomain() { return 'example.com'; } function getSubDomains() { return array('www.example.com'); } function register($domainKeys, $subdomains) { $domains = (array) getDomain(); if ($subdomains == null) { $domains = array_merge($domains, getSubdomains()); } else { $domains = array_merge($domains, $subdomains); } return $domains; } var_dump(register(null, []));
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { [0]=> string(11) "example.com" [1]=> string(15) "www.example.com" }

This tab shows result from various feature-branches currently under review by the php developers. Contact me to have additional branches featured.

Active branches

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

preferences:
86.3 ms | 401 KiB | 8 Q