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run code in 150+ php & hhvm versions
Bugs & Features
<?php preg_match("/^(?P<dir>img|js|css)/(?P<path>[/a-zA-Z0-9\-._~!$&'()*+,;=:@]+)$/", 'css/jquery.tweet.css', $m); var_dump($m);
Output for 5.2.0 - 5.6.28, 7.0.0 - 7.1.0
Warning: preg_match(): Unknown modifier '(' in /in/iosiC on line 5 NULL
Output for hhvm-3.10.0 - 3.12.0
Warning: Unknown modifier '(': [/^(?P<dir>img|js|css)/(?P<path>[/a-zA-Z0-9\-._~!$&'()*+,;=:@]+)$/] in /in/iosiC on line 5 NULL
Output for 4.3.11 - 5.1.6
Warning: preg_match(): Unknown modifier '(' in /in/iosiC on line 5 array(0) { }
Output for 4.3.0 - 4.3.10
Warning: Unknown modifier '(' in /in/iosiC on line 5 array(0) { }