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<?php preg_match_all('~([a-z])([0-9])~', 'b53d34a32', $matches); var_dump($matches); print str_repeat('=-', 42); preg_match_all('~([a-z])([0-9])~', 'b53d34a32', $matches, PREG_OFFSET_CAPTURE); var_dump($matches);

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