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<?php $str = '0000-0024-0055-'; $str = rtrim($str,'-'); $codes = explode('-',$str); var_dump($codes); $maxCode = (int)array_pop($codes); var_dump($maxCode);
Output for 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
array(3) { [0]=> string(4) "0000" [1]=> string(4) "0024" [2]=> string(4) "0055" } int(55)

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