3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $text = ""; preg_match_all("#https?\://(?:www\.)?graph.facebook\.com/(\d+)/picture#i", $text, $n); print_r($n);
Output for 4.3.0 - 7.1.0
Array ( [0] => Array ( ) [1] => Array ( ) )