3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $url = "https://mail.google.com/mail/u/1/#inbox"; $regexp = "/^(https?\:\/\/)?([a-zA-Z\_\.\-]+)\/"; preg_match($regexp, $url, $matches); var_dump($matches);
based on pK9bY
Output for 5.2.0 - 5.6.28, 7.0.0 - 7.1.0
Warning: preg_match(): No ending delimiter '/' found in /in/aCoOJ on line 5 NULL
Output for hhvm-3.12.0
Warning: No ending delimiter '/' found: [/^(https?\:\/\/)?([a-zA-Z\_\.\-]+)\/] in /in/aCoOJ on line 5 NULL
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.3.11 - 5.1.6
Warning: preg_match(): No ending delimiter '/' found in /in/aCoOJ on line 5 array(0) { }
Output for 4.3.0 - 4.3.10
Warning: No ending delimiter '/' found in /in/aCoOJ on line 5 array(0) { }