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<?php $string = 'string1+String-2'; preg_match_all("/(\W)+\+([\W])+/", $string, $matches); var_dump($matches);
Output for git.master, git.master_jit, rfc.property-hooks
array(3) { [0]=> array(0) { } [1]=> array(0) { } [2]=> array(0) { } }

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