3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $str = '<li data-type="mentionable" data-id="2">bla bla... <li data-type="mentionable" data-id="812">some test <li>bla bla </li>more text <li data-type="mentionable" data-id="282">'; preg_match_all("/data-id=\"(\d+)\"/", $str, $matches); print_r($matches[1]);
based on 1rjSa
Output for 5.6.0 - 5.6.30, hhvm-3.12.14 - 3.17.3, 7.0.0 - 7.2.6
Array ( [0] => 2 [1] => 812 [2] => 282 )