3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $adv = True; $licnum = 'L123'; if ($adv &! preg_match("/^P/", $licnum)){ echo "yes"; }else{ echo "No"; }
based on KJsEm
Output for 4.3.0 - 7.2.0
yes