Extravaganza Math Captcha is a small, fast and secure Captcha Class for small sites. E.g. 11 + 36 = ?
- Only two methods. GenerateCaptcha and CheckCaptcha — it's all!
- Random plus and minus operations.
- PHP 5.4
Generate captcha
$captcha = ExtravaganzaMathCaptcha::generateCaptcha();Display generated captcha
echo "How much is {$captcha['A']} {$captcha['action']} {$captcha['B']} = ?"; // How much is 5 + 3 = ?
Check captcha
if(ExtravaganzaMathCaptcha::checkCaptcha($answer) { // $answer = 8
echo "Captcha correct";
}
else
{
echo "Bad captcha";
}