PHP Program upload website logo error solution

At work, I will solve the problem one by one, and send the solution here.

Upload website logo error: PHP warning:file upload Error Unable to creatr a temporary file in Unknow on line 0

Create a folder called temporary temp in the folder where the site is located, because the PHP program requires a temporary folder.

Then open the PHP folder's php.ini file,

If the site folder named: Xxooupload_tmp_dir If there is a semicolon, first remove the semicolon, and then set a temporary directory, set to Upload_tmp_dir=d:/xxoo/temp

Then give this folder permission. IIS guest access permissions, as well as administrators, IIS-related programs, permissions for everyone, and then restart IIS. You can upload it.

PHP Program upload website logo error solution