Php server prompts the download function solution

The php server prompts the download function. I am working as a server on the PC. when other computers access me, I need to prompt the download function. how can this problem be achieved? Does it seem like writing and downloading in index. php? I have no experience in this field and do not know how to do it. I added this PHPcode & lt ;? Phpheader (& qu php server prompts download function
I am working as a server on a PC. when other computers access me, I need to prompt the download function. how can this problem be achieved?

Does it seem like writing and downloading in index. php? I have no experience in this field and do not know how to do it.

I added this section.

PHP code

What should I do?

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Then visit this page on another computer.
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Can I directly create a link using html code?
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Filename=aa.rar // you need a name here. Otherwise, a rar file will be generated.
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PHP code

# Down. php $ file = 'asdfgggout'; _ Download ("files_dir /". $ file, $ file); function _ Download ($ f_location, $ f_name) {header ("Cache-Control: must-revalidate, post-check = 0, pre-check = 0 "); header ('content-Description: File Transfer '); header ('content-Type: application/octet-stream '); header ('content-Length :'. filesize ($ f_location); header ('content-Disposition: attachment; filename = '. basename ($ f_name); readfile ($ f_location );}
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   Discussion
   

   
I added these three lines of code to LocalSettings. php:
   
PHP code
   

   
Header ("Content-type: application/rar ");
   

   
Header ("Content-Disposition: attachment?filename=sqlite.rar ");
   

   
Readfile ("E: \ ziptest \ SQLite.rar ");
   

   

   
When logging on to the homepage, a download prompt is displayed, ......