3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php preg_match('emailAddress([0-9a-f]+)', 'emailAddressabc', $matches); print_r($matches);
Output for 5.2.0 - 5.6.28, 7.0.0 - 7.1.0
Warning: preg_match(): Delimiter must not be alphanumeric or backslash in /in/LOSEu on line 2
Output for hhvm-3.12.0
Warning: Delimiter must not be alphanumeric or backslash in /in/LOSEu on line 2
Output for hhvm-3.10.0
Warning: Delimiter must not be alphanumeric or backslash in /in/LOSEu on line 8
Output for 4.3.11 - 5.1.6
Warning: preg_match(): Delimiter must not be alphanumeric or backslash in /in/LOSEu on line 2 Array ( )
Output for 4.3.0 - 4.3.10
Warning: Delimiter must not be alphanumeric or backslash in /in/LOSEu on line 2 Array ( )