Your first reference to a session (usually session_start()) must come
before any html is sent to the browser. A common problem is to have some
white space before the tag in a preceding file.
You can set up something like what you're working on using session
variables. Create random numbers an
I was wondering if there is a way to ensure that a form is only
submitted once. I have a script that saves a lot of information to the
disk and if the user uses the back button and then resubmits the form,
it will cause major problems. I jave looked into using javascript to
fix this, but it does
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