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run code in 200+ php & hhvm versions
Bugs & Features
<?php $reg='/pinboard\/webapp'; $str="wei/pinboard/webapp/t"; echo preg_match($reg, $str);
based on aKGEP
Output for 5.6.0 - 7.3.0alpha1
Warning: preg_match(): No ending delimiter '/' found in /in/rJZDB on line 4