PHP script needed to log into site and download several images to disk

I have a PHP script that logs into a web site and downloads several images based on a primary key input. The script is structured properly but does not quite work. I need it troubleshot or re-written. Anyone with good knowledge of session cookies and using CURL in PHP to POST and GET pages will find this easy. Specific script and target URL will be given to coder upon winning the bid. In short, the script's job is to run from CLI and download several images from a website based on a primary key input. Credentials for website will be provided. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform Linux PHP 5.x