hi folks!
i have a cart link in all of my listed products on the site. when i
press this link i will generate a url like this http://www.mysite.com/index.htm?loca...rt&productid=3
after i press this link the site cart.php will be included and add the
wanted product to the cart, and show the cart.
my problem now is after the cart is showed with the new product in it,
when i press the F5 key in the browser to refresh the site, the same
product will added to the cart once more, because the previous generated
url is unchanged in the browser.
have anyone a idea how to fix this problem?
thanx...
Jul 21 '05
12  3810 
Josef Blösl wrote: hi folks!
i have a cart link in all of my listed products on the site. when i
press this link i will generate a url like this
http://www.mysite.com/index.htm?loca...rt&productid=3
after i press this link the site cart.php will be included and add the
wanted product to the cart, and show the cart.
my problem now is after the cart is showed with the new product in it,
when i press the F5 key in the browser to refresh the site, the same
product will added to the cart once more, because the previous generated
url is unchanged in the browser.
have anyone a idea how to fix this problem?
This is not acutally a problem. Moreover it's a usability feature.
If it's get added, the enduser may delete it.
--
<?php echo 'Just another PHP saint'; ?>
Email: rrjanbiah-at-Y!com Blog: http://rajeshanbiah.blogspot.com
R. Rajesh Jeba Anbiah wrote: Josef Blösl wrote: hi folks!
i have a cart link in all of my listed products on the site. when i
press this link i will generate a url like this
http://www.mysite.com/index.htm?loca...rt&productid=3
after i press this link the site cart.php will be included and add
the wanted product to the cart, and show the cart.
my problem now is after the cart is showed with the new product in
it, when i press the F5 key in the browser to refresh the site, the
same product will added to the cart once more, because the previous
generated url is unchanged in the browser.
have anyone a idea how to fix this problem?
This is not acutally a problem. Moreover it's a usability feature.
If it's get added, the enduser may delete it.
Actually, it's easily solvable. You have two scripts - let's call them
additem.php and showcart.php
when you add an item to the cart, it calls additem.php, which does the
actual work of putting the item in the cart. But it doesn't output anything.
When it's done processing the added item, additem.php uses header() to call
showcart.php, which displays the cart. If you hit refresh at this point,
you're only refreshing showcart.php, and not processing the added item
again.
--
Tony Garcia
Web Right! Development
Riverside, CA www.WebRightDevelopment.com
On 2005-07-19, Josef Blösl <jo**********@g mx.at> wrote: hi folks!
i have a cart link in all of my listed products on the site. when i
press this link i will generate a url like this
http://www.mysite.com/index.htm?loca...rt&productid=3
after i press this link the site cart.php will be included and add the
wanted product to the cart, and show the cart.
my problem now is after the cart is showed with the new product in it,
when i press the F5 key in the browser to refresh the site, the same
product will added to the cart once more, because the previous generated
url is unchanged in the browser.
have anyone a idea how to fix this problem?
thanx...
This is a common problem. The usual thing to do is send a timestamp with
the data. When you recieve a form post or vars in the get string and the
timestamp is present store all the data in the session and if you
receive the exact same data with the exact same information, then you
have a duplicate and ignore, if you have the same timestamp and
different form values you unde the first post and do the second post
instad. Or question the user and ask them to fill in the form again so
you can be sure.
Don't forget to expire info from the session if it starts getting too
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