PHP Image resize customization

I have two separate php pages/script that I need merged into a single page/script. The Situation: 1) I have a PHP upload script that I am using on a website that allows clients to upload their photos to their account. This script renames the file with a hash and .bin for security reasons. 2) For later viewing there is a "get" script that matches the original name and file type back to the file. 3) I have a 3rd script that I want to use that allows for automatic resizing of images when they are called using this script. The Problem: The image resizing script currently requires an absolute file path and image name which isn't available because of having to using the "get" script to pull the image down. The Project: Combine the "Get" script and "Image Resizing" script so that I can pull images and resize them using a dynamic file path. I've a attached copies of both scripts for reference