How to standardize a document name when uploaded?

How do I standardize a document name when uploaded for example C:xampp/htdocs/member/$user/photo/chris.jpg to be automatically changed to C:xampp/htdocs/member/$user/photo/photo.jpg

Anybody with any suggestions?

You could use the php file/directory methods to search each directory and check the name if it
needs to be changed then change it to what you want.

What did you Try? What did you Get? What did you Expect?

Joined CodeIgniter Community 2009.  ( Skype: insitfx )