3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $string = '<iframe width="640" height="360" src="http://www.youtube.com/embed/h9jOaIB1VGo?rel=0&wmode=transparent" frameborder="0" allowfullscreen></iframe>'; var_dump(preg_match("/src=\"(.*)\"/", $string, $matches));
Output for 4.3.0 - 7.2.0
int(1)