The solution to the error occurred in the php program upload website logo
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Error occurred uploading website logo: 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 php programs need temporary folders.
Then open the php.ini file of the php folder
If the website folder is called: xxooupload_tmp_dir if there is a semicolon in front of it, first remove the semicolon, then set up a temporary directory, set it to upload_tmp_dir=d:/xxoo/temp, and then give the folder permission. IIS guest access rights, as well as administrator, IIS related programs, everyone permissions, and then restart IIS. You can upload it.