I have asked this question twice i think, but this is the first time i have gotten close to this. I am planning on allowing users to upload and download their files (.pdf, .doc, .exl, .ppt, .png, .jpg, .gif).
Will these tips be suffice:
http://blogs.sans.org/appsecstreetfighter/2009/12/28/8-basic-rules-to-implement-secure-file-uploads/
Also, is there a script I can utilize, i am new to php.