php截取中文乱码有关问题
php截取中文乱码问题
在页面显示链接地址的时候，要控制字数，字母还没问题，当遇到中文的时候，截取容易出现乱码，以前在smarty中有caterutf8()这个函数，在php中有很多函数来截取字符sub_str(),mb_substr()很多，mb_strcut($arrList['Video']['video_title'],0,30,'utf8')这个函数可以截取字符串，后面的参数可以设置编码，不过用这个函数的时候要php打开mb_string模块。
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mysql()中的一个函数find_in_set('aa',column);可以用来查询column中包含'aa'的记录，比like更加准确，它可以把'aa'当做一个原子来进行查询，多用在一个字符串中存有多个信息时候。
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