3v4l.org

run code in 300+ PHP versions simultaneously
<?php function filterwords(string $text, array $bannedWords) { return preg_replace_callback( '/\b(?:' . implode('|', $bannedWords) . ')\b/iu', fn($m) => str_repeat('*', mb_strlen($m[0])), $text ); } echo filterwords("I am a dummy, but I'm not dumb", ['dummy']);
Output for git.master_jit, git.master, rfc.property-hooks
I am a *****, but I'm not dumb

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:
34.4 ms | 405 KiB | 5 Q