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<?php $m = []; var_dump(preg_match("/([A-Z]+)(\d+)/", "AB32CD123", $m)); var_dump($m);
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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
int(1) array(3) { [0]=> string(4) "AB32" [1]=> string(2) "AB" [2]=> string(2) "32" }

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152.13 ms | 403 KiB | 284 Q