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<?php function a($pattern, $subject, &$matches = null) { return preg_match($pattern, $subject, $matches); } $r = a('~[a|b]+~', 'aaaa', $matches); var_dump($r, $matches); $r = a('~[a|b]+~', 'aaaa'); var_dump($r);
Output for git.master, git.master_jit, rfc.property-hooks
int(1) array(1) { [0]=> string(4) "aaaa" } int(1)

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