3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $pattern='/淸/'; $txt='淸_哈哈哈哈_我来试试'; $match = preg_match($pattern, $txt); if ($match===false) { echo 'fail'; }
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0