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<?php $re = '/<\!--[od]+-(\d+)-->(.*?)(?=<!--|$)/s'; $str = '<!--od-1--> cdskc sdkjc dsd sk<!--od-2-->cscdscsdcsd cdscs csdcsdc <!--od-432-->cdcdscsd'; preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0); print_r($matches);

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28.45 ms | 405 KiB | 5 Q