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<?php $course_id = "SW_3200R51S14C"; preg_match("/[A-Za-z]+/",$course_id, $matches); print_r($matches); preg_match("/[0-9]+/",$course_id, $matches); print_r($matches); preg_match("/R[0-9]+/",$course_id, $matches); print_r($matches);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => SW ) Array ( [0] => 3200 ) Array ( [0] => R51 )

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