3v4l.org

run code in 300+ PHP versions simultaneously
<?php function callback($s) { return substr_replace($s[0], str_repeat('*', strlen($s[0])), 0, -4); } $value = '5746244234383238'; var_dump(preg_replace_callback('/\d{12,16}/', 'callback', $value));
Output for git.master, git.master_jit, rfc.property-hooks
string(20) "****************3238"

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:
47.14 ms | 401 KiB | 8 Q