3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $foo = '/funky-weasels/go/wow'; echo preg_replace('@^/@', $foo);
Output for 5.3.0 - 7.1.0
Warning: preg_replace() expects at least 3 parameters, 2 given in /in/XoHqG on line 3
Output for 4.3.0 - 5.2.17
Warning: Wrong parameter count for preg_replace() in /in/XoHqG on line 3