We would have no way of knowing where that would be. its in your php.ini.It is my understanding that the way PHP works is when you upload a file, it is put into a temporary folder. This folder if configured by you, the system administrator, or the host. When the file finishes uploading PHP moves it to the desired target location. If PHP cannot write to its own temp folder or cannot read the file after you would get the result that you are describing.