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run code in 200+ php & hhvm versions
Bugs & Features
<?php $matches = array(); echo (preg_match("/(.*:)star_(\d)/", "star_2", $matches)); var_dump ($matches);
based on DBjNN
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.3.0alpha1
0array(0) { }