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<?php $year = "2008"; $range = "2008-2013"; $regex = "/(\d{0,4}+(?:-\d{0,4}?)?)/is"; $matches = array(array()); preg_match($regex, $range, $matches[0]); preg_match($regex, $year, $matches[1]); print_r($matches); ?>
Output for 4.3.0 - 7.2.0
Array ( [0] => Array ( [0] => 2008- [1] => 2008- ) [1] => Array ( [0] => 2008 [1] => 2008 ) )