3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $vhost ='Allow from 127.0.0.1'; $matches = []; preg_match('/^Allow from (\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})', $vhost, $matches); var_dump($matches);
based on oATDX
Output for 5.4.0 - 7.2.0
Warning: preg_match(): No ending delimiter '/' found in /in/oEOOE on line 6 array(0) { }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/oEOOE on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/oEOOE on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/oEOOE on line 4
Process exited with code 255.