3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $value = 'whhhee.xls'; preg_match("\.xls",$value);
Output for 4.3.11 - 7.2.0
Warning: preg_match(): Delimiter must not be alphanumeric or backslash in /in/5vSPl on line 3
Output for 4.3.0 - 4.3.10
Warning: Delimiter must not be alphanumeric or backslash in /in/5vSPl on line 3