3v4l.org

run code in 300+ PHP versions simultaneously
<?php function function_name(){} class C{ static function m(){} } $f = function(){}; var_dump(is_callable('function_name')); var_dump(is_callable(function(){})); var_dump(is_callable(array('C','m'))); var_dump(is_callable(array(new C(),'m'))); var_dump(is_callable($f));
Output for git.master, git.master_jit, rfc.property-hooks
bool(true) bool(true) bool(true) bool(true) bool(true)

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:
27.64 ms | 405 KiB | 5 Q