Duplicate php value

komrad · 10-13-2008, 08:45 PM

Hello all,

I'm a learning php this year but i encounters some problems.

One of them is about php value. The problem is how do i do to prevent a php file from resending the same values into the database whenever the page is refreshed?

Anyone help?

Thanks,

Asep

Emilian · 10-13-2008, 10:21 PM

Check the database and see if the data is there already. If it is, then do not enter it, if it is not then enter it.

Sean Kelly · 10-14-2008, 10:18 AM

You can use a cookie or session variable to determine if the current page has already been submitted to decide if you should do an insert or not.

Sean

Emilian · 10-14-2008, 11:08 AM

Cookies can be changed client side and sessions can be hijacked. If you need something solid then check on the server side and not the client side. Otherwise you will end up with duplicate values.

10-13-2008, 08:45 PM	#1
komrad Warrior Member Join Date: May 2007 Location: , , . Posts: 10 Thanks: 1 Thanked 0 Times in 0 Posts Social Networking Contact Info	Duplicate php value Hello all, I'm a learning php this year but i encounters some problems. One of them is about php value. The problem is how do i do to prevent a php file from resending the same values into the database whenever the page is refreshed? Anyone help? Thanks, Asep
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10-13-2008, 10:21 PM	#2
Emilian HyperActive Warrior Join Date: Jul 2007 Location: , , USA. Posts: 187 Thanks: 0 Thanked 1 Time in 1 Post	Re: Duplicate php value Check the database and see if the data is there already. If it is, then do not enter it, if it is not then enter it.
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10-14-2008, 10:18 AM	#3
Sean Kelly Advanced Warrior War Room Member Join Date: Oct 2006 Location: Ireland Posts: 750 Thanks: 5 Thanked 34 Times in 24 Posts Contact Info	Re: Duplicate php value You can use a cookie or session variable to determine if the current page has already been submitted to decide if you should do an insert or not. Sean
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10-14-2008, 11:08 AM	#4
Emilian HyperActive Warrior Join Date: Jul 2007 Location: , , USA. Posts: 187 Thanks: 0 Thanked 1 Time in 1 Post	Re: Duplicate php value Cookies can be changed client side and sessions can be hijacked. If you need something solid then check on the server side and not the client side. Otherwise you will end up with duplicate values.
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