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<?php $items = array( '<title>Something (TV 1999-2000)</title>' ,'<title>Something (1999-2000)</title>' ,'<title>Something (19999-2000)</title>' ,'<title>Something (99000)</title>' ,'<title>Something (2000)</title>' ); $regex = "/<title>.*?\(.*?(\d{4}(-\d{4})?).*?\)<\/title>/is"; foreach($items AS $k => $str) { preg_match($regex, $str, $matches[$k]); } 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, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 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] => Array ( [0] => <title>Something (TV 1999-2000)</title> [1] => 1999-2000 [2] => -2000 ) [1] => Array ( [0] => <title>Something (1999-2000)</title> [1] => 1999-2000 [2] => -2000 ) [2] => Array ( [0] => <title>Something (19999-2000)</title> [1] => 1999 ) [3] => Array ( [0] => <title>Something (99000)</title> [1] => 9900 ) [4] => Array ( [0] => <title>Something (2000)</title> [1] => 2000 ) )

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305.56 ms | 407 KiB | 460 Q