3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = ' The quick brown fox jumped over the lazy dog.'; $patterns = array(); $patterns[0] = x; $replacements = array(); $replacements[0] = ''; echo preg_replace('/^\s*/', '', $string); ?>
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Undefined constant "x" in /in/kfCWF:4 Stack trace: #0 {main} thrown in /in/kfCWF 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:
53.75 ms | 401 KiB | 8 Q