Simple PHP example for combining PDFs

Create a PHP example page with Dropdown menu with the following options: sheet_a sheet_b sheet_c sheet_d sheet_e An adjacent pane that shows the selected projects with the ability to drag and drop the desired order. A text box to input a filename. A submit button will combine the selected PDFs in the desired order and save it as a single PDF with the filename selected. Source PDFs would be named: [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] Deliverable needs to be in the form of PHP and associated scripts. If MYSQL is used, need the datebase dump as plain text. If you have the ability to host an example of the functioning php, prior to delivery, that would be preferred.