使用php表单从mysql下载文件时遇到问题

Hi Im just at the end of developing a prototype that allows users to select some options via dynamic dropdowns and then upload a small file to mysql. I have just completed the search function that works fine and returns the results correctly. Whats had me stuck for the last few days is allowing a user to download one of the files returned in the search result. Ive put the results into a html table and used a form for a download option, this is where I suspect the problem lies with the form because when I have messed around the file download works but when a user hits search on the previous page.Hi Im just at the end of developing a prototype