change position of image in image gallery using php

Hi i am working on a photo gallery. Here all images are coming from mysql database table. The images are uploaded from the admin panel. I am using php to upload and fetch images from database table. Till here all things are working fine. Now i have to implement a system where user should be able to define the position of the image in the image gallery and image positions should be swiped with one another image. In the gallery page I am showing 16 images in four rows and after that pagination starts. So will it be possible to implement such a system in my image gallery?