3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $s = '<iframe width="800">sfsdfsdf</iframe>'; echo preg_replace('~(.*width=["]?)(\d+)(["]?.*)~', '$1222$3', $s);
based on lB28N
Output for 4.3.0 - 7.1.0
22">sfsdfsdf</iframe>