Double form submitting

[Tandem]

I think i might be havng a problem with forms being submitted twice. At the moment i have a javascript file that removes all submit buttons from a form once one of them has been clicked, so as to stop double submitting.

However i have heard that there is a no-scipt plug-in for firefox and i think that it might be stopping that particular script from working, and leaving my forms open to being double submitted by its users.

I was wondering if there is anything that i can do within php to stop this? And if anyone could suggest any other alternatives too.

Thanks in advance.

[phporcaffeine]

PHP is a server side language, javascript is client side.  The two languages essentially operate in different universes and really only share the 'GET' namespace.

No, PHP isn't going to help you here.  The best thing PHP could help with is validation.  I would recommend taking another look at your form and try redesigning it so it submits fast, reducing the chance for a submit button to be pressed twice.

[Psycho]

When creating the form you could use PHP to insert a random number into a hidden field. Then when the form is submitted, the page that is processing the submission would check to see if there is a record in the database with that unique ID. Of course, you would need to include that identifier when adding records to the database.