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<?php preg_match_all('/^([a-z0-9_]+)(::([a-z0-9_]+))/', 'lol::second::third::fourth', $matches, PREG_PATTERN_ORDER); var_dump($matches);
Output for git.master, git.master_jit, rfc.property-hooks
array(4) { [0]=> array(1) { [0]=> string(11) "lol::second" } [1]=> array(1) { [0]=> string(3) "lol" } [2]=> array(1) { [0]=> string(8) "::second" } [3]=> array(1) { [0]=> string(6) "second" } }

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