3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = preg_match('#^https://www.youtube.com/watch\?v=(.*{11})#','https://www.youtube.com/watch?v=Ex9huC9uUg8&feature=youtube_gdata', $matches); var_dump($matches);
Output for 5.2.0 - 7.1.0
Warning: preg_match(): Compilation failed: nothing to repeat at offset 40 in /in/kKELG on line 2 NULL
Output for 4.3.11 - 5.1.6
Warning: preg_match(): Compilation failed: nothing to repeat at offset 40 in /in/kKELG on line 2 array(0) { }
Output for 4.3.0 - 4.3.10
Warning: Compilation failed: nothing to repeat at offset 40 in /in/kKELG on line 2 array(0) { }