Re: stopping repeated posts to a Bulletin Board

On 2002. szeptember 17. 15:52, Resarch and Development wrote: > What is the best way to avoid the "repeated comment/post" syndrome > caused by the user clicking the submit button one too many times > because he/she did not wait for the browser to return a confirmation > page or the script took too long to execute. Hello! The best way i think is not the 'redirecting to success page' solsution. It may be flooded with back button. It's easy solution to add a unique id to every generated form in a hidden field. Unique id may be generated with uniqid() function or with apaches UNIQUE_ID envireoment variable, if mod_unique_id compiled. Check $_SERVER['UNIQUE_ID']; Before storing data you can check the presence og that id somewhere (separate used-id storing table, or in an additional field in your target table). If check shows that ID was used, do nothing with data, if that check is negative, store the data. I prefer separate dup-store table, with an expire_date field. Expiration time may be from half our to a week. You can purge old ID-s from cron daily or more frequently. I have an oop class named dupkiller to handle that problem, if you interested. Heilig (Cece) Szabolcs