3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $base="www.youtube.com"; $mydomain="www.pippobruco.it"; $stringa="wwww.youtube.com/watch"; echo str_replace($base,$mydomain.$base,$stringa);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
wwww.pippobruco.itwww.youtube.com/watch