Captcha ZDR - powerfull captcha tool

This is simple, complete and powerfull captcha tool written in PHP
for protecting your web FORMS from spammers.Under GPL.

"Captcha ZDR" offers several methods of captcha protection,
string protection, calculation protection (sum and deduction), noise in image, string symbols are hard for reading from spamer machines.
8 unique backgrounds for captcha image.

captcha zdr demo image Captcha image demo 2 \
captcha image example Captcha image sum demo

DEMO VERSION CLICK HERE

The class "Captcha ZDR" is under GPL. You can visit forum related to Captcha ZDR, and get some support.

FORUM: http://www.webtoolbag.com/forum/
DOWNLOAD: CAPTCHA_ZDR.ZIP

INSTALLATION

1. Copy file "captcha_img.php" to your "FORM" directory;
2. Copy directory "png_bank" to directory where is captcha_img.php;
3. Copy directory "class" to directory where is captcha_img.php;
4. Paste CAPTCHA image in your "FORM". Example: <img src="captcha_img.php?<?=session_name()?>=<?=session_id()?>" mce_src="captcha_img.php?<?=session_name()?>=<?=session_id()?>" border="0">
5. Paste CAPTCHA field in your "FORM". Example <input type="text" name="capt" style="width: 80px">
6. Make some logic in your "VERIFY" page (submit target page). Example:

if($_SESSION['captcha']!=$_POST['capt'])
{
echo 'Your Input is wrong! :-(';
}
else
{
echo 'Your Input is true! :-)';
}

IMPORTANT:

$_SESSION['captcha'] variable contains RIGHT result from CAPTCHA image.
You can use example.php and example_submit.php for more information.
Write in the forum of Captcha ZDR http://www.webtoolbag.com/forum/

Success! :)

DOWNLOAD

The class "Captcha ZDR" is under GPL.
You can visit forum related to Captcha ZDR, and get some support.
http://www.webtoolbag.com/forum/

Copyright (C) 2007 Zdravko Shishmanov
Country: Bulgaria
Email: zdrsoft[at]yahoo.com
http://www.webtoolbag.com

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