3v4l.org

run code in 300+ PHP versions simultaneously
<?php $empty_string = ''; $ref = &$empty_string['x']; $ref = 'hello'; var_export($empty_string); print "\n"; $non_empty_string = 'abc'; $ref = &$non_empty_string['x']; $ref = 'hello'; var_export($non_empty_string);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: Cannot access offset of type string on string in /in/dDDi0:4 Stack trace: #0 {main} thrown in /in/dDDi0 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:
192.78 ms | 405 KiB | 5 Q