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<?php preg_match('/.+\s\(ID:?(.*)\)$/', 'abc (xyz) (ID:http://ex () ample.com)', $match); print_r($match); preg_match('/.+\s\(ID:(.*)\)$/', 'abc (xyz) (ID:123456)', $match); print_r($match);
Output for 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] => abc (xyz) (ID:http://ex () ample.com) [1] => http://ex () ample.com ) Array ( [0] => abc (xyz) (ID:123456) [1] => 123456 )

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