I just wonder some user when they upload image into my website, I noted the file name is php4nfPYF. It starts with php
Here is the link when you open the pictures you will see the name, it is at right side
https://seekkhmer.com/stream/item/5102
https://seekkhmer.com/stream/item/5130
https://seekkhmer.com/stream/item/5125
https://seekkhmer.com/stream/item/5121
I respect, it show the original name from image in there. It is not start with php
thank