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<?php $s = 'ab-123-asdf'; if (preg_match('/\w-(?P<num>\d+)-(\w)/', $s, $matches)) { var_dump($matches); }
Output for git.master, git.master_jit, rfc.property-hooks
array(4) { [0]=> string(7) "b-123-a" ["num"]=> string(3) "123" [1]=> string(3) "123" [2]=> string(1) "a" }

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