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<?php $subject = 'abcabc'; preg_match_all('/ab(?:(?!ab).)*/', $subject, $matches); var_dump($matches);
Output for git.master_jit, git.master, rfc.property-hooks
array(1) { [0]=> array(2) { [0]=> string(3) "abc" [1]=> string(3) "abc" } }

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