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MathGuard PHP form spam protection
MathGuard PHP form spam protection
MathGuard is a PHP class that inserts a small piece of HTML code into your HTML form which requires the user to evaluate an expression consisting of two random numbers. When user submits the form with the answer, the answer is hashed and compared to the security code that has been submitted as well. This way you can easily protect your forms from spambots.
- Price: free
- Updated: 05/30/07
- Visits: 43