3v4l.org

run code in 300+ PHP versions simultaneously

sponsor
bughunt
search
recent
about

@ 2014-03-26T15:57:16Z

<?php

function f(){ echo 'oops'; }
echo preg_replace('/.+/e', 'strlen("\0")', $s='\\{f()}');

Output
Performance
VLD
References
Branches

preg_replace: documentation ( source)

preferences:dark modelive preview

52.73 ms | 402 KiB | 5 Q