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08.07.2008 at 06:05PM PDT, ID: 23631460
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9.0

Making Safe Web Form Processing with PHP/MySQL

Asked by Danimal in PHP and Databases, PHP Scripting Language, MySQL Server

So I have a simple form, basically like the one at the link. With a form like that, people can enter anything, including hacks.. I realize everyone knows this.

My question is, is there a PHP function or sample code that will scrub the entry for dangerous characters, so it will then be safe to submit the entered/scrubbed value to the database, without blowing up my site?

For instance, how does Blog Catalog protect itself from malicious form submissions?

I understand about use of captchas, and limiting access to forms, but after all that, it's still necessary to make sure the values submitted in the forms are not going to damage anything. That is the step I am focused on now.

As always, any and all information and commentary will be appreciated immensely.

Best regards,
danimal

Here is the demo link: http://www.danallen.com/zDemos/demoForm.htmStart Free Trial
 
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[+][-]08.07.2008 at 06:34PM PDT, ID: 22186922

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[+][-]08.07.2008 at 06:36PM PDT, ID: 22186927

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[+][-]08.07.2008 at 10:31PM PDT, ID: 22187646

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[+][-]08.08.2008 at 08:09AM PDT, ID: 22190595

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About this solution

Zones: PHP and Databases, PHP Scripting Language, MySQL Server
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Solution Provided By: LordOfPorts
Participating Experts: 1
Solution Grade: A
 
 
 
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