Graphics: Math CAPTCHA Class
nickolas whiting (contact me)
This class can be used to perform CAPTCHA validation using math operations.
It can generate an image that displays a simple mathematical operation between two random integer numbers.
Currently the class supports the addition, subtraction and multiplication operations.
The user needs to enter the result of the math operation to pass the validation.
The class stores the validation numbers in session variables for later verification.
Click here for detailed information about this class on phpclasses.org
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