3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php preg_match('/(http|https|ftp|ftps)\:\/\/[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(\/\S*)?/', $str, $link); if (empty($link[0])) { echo "Nothing found!"; } else { echo $link[0]; }
Output for 5.5.0 - 7.1.7
Notice: Undefined variable: str in /in/OjvvB on line 2 Nothing found!
Output for 4.3.0 - 5.4.45
Nothing found!