CAPTCHA is a type of challenge-response test used to determine whether or not the user is a human. CAPTCHA requires that the user type the letters of a distorted image, with the addition of an obscured sequence of letters or digits that appears on the screen. To add it to your page you need to:
create field to enter CAPTCHA
add CAPTCHA picture using this code:
then point in the config.php file in your form configuration section (not in general settings, this action is set individually for each form):
You can configure CAPTCHA appearance in the global section of the config.php file.
You can set color by its name, or its hex number with leading #. Supported color names:
Supported fonts:
<div style="width: 178px;">
<center>
<img src="../fpp/captcha.img.php" id="captcha_image" width="178"><br />
<input type="button" value="reload" onclick="document.getElementById('captcha_image').src = '../fpp/captcha.img.php?sid=' + Math.random(); return false" />
</center>
</div>
Where ../fpp/captcha.img.php is the path to the captcha.img.php file.
CAPTCHA is only available in the following licenses: Business, World Wide, ISP.