4
it doest change the file name , but the files saved out the root of the site so no one can view the files uploaded and for safty from useing html or php files ..
when the files saved out of the root , even if some one upload bad file he will not be able to trace it where it is that file .becose the files will be saved out of the root
Whatever Hits You , Never was to Mess you , and Whatever Messed U , Never Was to Hit You.