Iggy SZN (Explicit) Iggy Azalea 专辑：Reclassified 语种： 英语 流派： Rap/Hip Hop 唱片公司：环球唱片
i want to ask, what is the meaning or difference between these two line? if( preg_match_all(\'/\\#([א-תÀ-ÿ一-龥а-яa-z0-9\\-_]{1,50})/iu\', $message, $matches, PREG_PATTERN_ORDER) ) {
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