Chris Payne wrote:
I'm using PHP and MySQL in a shopping cart system but the client wants it so
that when you add an item to the cart the page doesn't refresh and we all
know with PHP the page MUST refresh in order to execute the MySQL query. Is
to have the page itself refresh when they add the items to the cart? This
is really a pain as the system was basically finished and now I'm told they
don't want the page to refresh and they see other sites that don't refresh -
Ask them if they're willing to lose any business at all, because any
solution (XMLHttpRequest, hidden frame, cookies to store it until page
refresh, etc.) will or could run into compatibility problems, and it's
possible users won't be able to check out if they're using older browsers.
Also, it's really too late now, but you should try to demo these things
early and be firm about having things stated as early in the process as
possible, so you can change to meet their final request (which always
differs from their initial) earlier rather than later. Bottom line is
this is probably a new request, but you may have to eat it depending on
your situation / relationship / contract.
- Martin Norland, Sys Admin / Database / Web Developer, International
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