3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $regex = "^[a-zA-Z0-9]"; $str = '├╝ba'; echo preg_replace($regex, '', $str);
Output for 4.3.11 - 7.2.0
Warning: preg_replace(): No ending delimiter '^' found in /in/fihF1 on line 7
Output for 4.3.0 - 4.3.10
Warning: No ending delimiter '^' found in /in/fihF1 on line 7