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>'; preg_match("/src=\"(.*)\"/", $string, $matches); var_dump($matches);
Output for 4.3.0 - 7.2.0
array(2) { [0]=> string(86) "src="http://www.youtube.com/embed/h9jOaIB1VGo?rel=0&wmode=transparent" frameborder="0"" [1]=> string(80) "http://www.youtube.com/embed/h9jOaIB1VGo?rel=0&wmode=transparent" frameborder="0" }