Php-mysql encoding problems

Php-mysql encoding issues have made a php download function, including list. php page and download. on the php page, the database table uses utf8, and the setnames 'utf8' is used to connect to the database. The UTF-8 header is added to the two php pages, and the utf8 header is also selected when the file is saved, why is everything on the page Normal? click to download the Chinese php-mysql code.
A php download function is provided, including list. php page and download. on the php page, the database table uses utf8, and the set names 'utf8' is used to connect to the database. The UTF-8 header is added to the two php pages, and the UTF-8 header is also selected when saving the file, why is everything on the page Normal, that is, when you click to download a file with a Chinese name, you will not be able to find the file, click on English to download the file normally
You can use set names gb2312 to find the file to be linked to the database.

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Yes! Yes.
You work in the window operating system, and your hard disk is a simplified Chinese (gbk) file name.
If you use UTF-8 encoded file names, the computer will not recognize them.
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Try iconv transcoding?