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<?php $range = "2008-2013"; $year = "2008"; $shite = "-2013"; $regex = "/(\d{4}\-\d{4}|\d{4})/is"; $matches = array(); preg_match($regex, $range, $matches); preg_match($regex, $year, $matches); preg_match($regex, $shite, $matches); print_r($matches); ?>
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Array ( [0] => 2013 [1] => 2013 )

preferences:
210.36 ms | 406 KiB | 314 Q