Open and edit DWG and Other CAD Files in PHP

Hello, I'm looking for a PHP coder able to provide PHP script that is able to open DWG or DXF files. This need to show the DWG as like it was open an image (for example I click in [login to view URL]) it will open the file like it was a JPG. This need only to open the files and create a thumbnail of the file and edit that files ( it is Ok if its need a supporting app etc. ) This class is to be used in a framework based on CodeIgniter, and should open it in any browser. Thank you