3v4l.org

run code in 300+ PHP versions simultaneously
<?php @$undef; @debug_zval_dump ( $undef ); $undef = "defined"; debug_zval_dump($undef);
Output for git.master, rfc.property-hooks
NULL string(7) "defined" interned
Output for git.master_jit
NULL string(7) "defined" refcount(3)

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:
34.52 ms | 401 KiB | 8 Q