All the answers are great but Stuart Dallas' answer is what I was asking about .. thank u all I really appreciate it a lot On Sun, Jan 1, 2012 at 11:10 PM, Stuart Dallas <stuart@xxxxxxxx> wrote: > On 1 Jan 2012, at 16:26, muad shibani wrote: > > > I have a website that posts the most important news according to the > number > > of clicks to that news > > the question is : what is the best way to prevent multiple clicks from > the > > same visitor? > > I'm assuming this is not a voting system, and the news items you're > counting are sourced from your own site and, with all due respect to Ash, > unlikely to be a target for false clicks. All you're really wanting to do > is prevent the site from registering multiple hits from the same user in a > short period of time. > > I would probably use memcached on the server-side to store short-term > information about clicks. When a news item is loaded... > > 1) Construct the memcache key: "newsclick_<article_id>_<ip_address>". > 2) Fetch the key from memcache. > 3a) If it does not exist, log the hit. > 3b) If it does exist, compare time() with the value and only log the hit > if time() is greater. > 4) Store the key with a value of time() + 300 and an expiry of the same > value. > > This will prevent hits being logged for the same news item from the same > IP address within 5 minutes of other hits. > > Other alternatives would be to use cookies (could get messy, and not very > reliable since it requires the response from click 1 to be processed before > click 2 gets started), Javascript (as suggested by tedd but without the > token - it would work pretty well and would be a lot easier to implement > than the above, but you sacrifice having full control over it). > > If I'm interpreting the requirement correctly my solution is almost > certainly overkill, and a simple Javascript solution would be more than > sufficient. > > -Stuart > > -- > Stuart Dallas > 3ft9 Ltd > http://3ft9.com/ -- *_______________* * * السجل .. كل الأخبار من كل مكان www.alsjl.com صفحة السجل على فيسبوك http://www.facebook.com/alsjl *Muad Shibani* * * Aden Yemen Mobile: 00967 733045678 www.muadshibani.com