How to solve the contradiction that SQL server does not support utf8 php but uses utf8?
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Function convert2utf8 ($string) {return iconv ("gbk", "utf-8", $string);} function convert2gbk ($string) {return iconv ("utf-8", "gbk", $string);}
When inserting data or modifying data, change utf-8 to gbk and store it in the database.
When the data is obtained, the data is converted to utf-8.
This method is designed in the underlying data and can be called by the upper layer.
