3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $course_id = "SW_3200R50S14C"; $matches = array(); preg_match("/[0-9]+/",$course_id, $matches); print_r($matches);
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
Array ( [0] => 3200 )
Output for hhvm-3.10.0

Process exited with code 153.