3v4l.org

run code in 300+ PHP versions simultaneously
<?php function a () { function b() { echo "I am ".__FUNCTION__."\n"; } echo "I am ".__FUNCTION__."\n"; } echo function_exists("b") ? "b is defined\n" : "b is not defined\n"; a(); echo function_exists("b") ? "b is defined\n" : "b is not defined\n"; b(); a(); echo function_exists("b") ? "b is defined\n" : "b is not defined\n";
Output for git.master, git.master_jit, rfc.property-hooks
b is not defined I am a b is defined I am b Fatal error: Cannot redeclare b() (previously declared in /in/uGOVP:5) in /in/uGOVP on line 4
Process exited with code 255.

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:
40.11 ms | 401 KiB | 8 Q