3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $s = '<iframe width="800"><embed width=300>fdgdfg</embed>sfsdfsdf</iframe>'; echo preg_replace('~(.*width=["]?)(\d+)(["]?.*)~', '${1}222${3}', $s);
based on ZqAE5
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
<iframe width="800"><embed width=222>fdgdfg</embed>sfsdfsdf</iframe>