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PHP Scripts arrow Anti Spam Scripts
Anti Spam Scripts
Anti Spam scripts that will protect your forms to be submited by spammer's bots. Captcha (an acronym for "Completely Automated Public Turing test to tell Computers and Humans Apart" ) is the most common and effective spam protection technique.
 
Captcha is a type of challenge-response test used in computing to determine whether or not the user is human or spammer's robot. A CAPTCHA involves one computer (a server) which asks a user to complete a test. While the computer is able to generate and grade the test, it is not able to solve the test on its own. Because computers are unable to solve the CAPTCHA, any user entering a correct solution is presumed to be human.

Protect your forms from spammers with these free php spam protection scripts.
 

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There are 19 listings in this category. Add your free script here
Phoca Captcha Phoca Captcha
Phoca CAPTCHA php class is a small free class to show CAPTCHA image in your form. You can safe your form from Spam. You need PHP with GD library but you don't need TTF support.
(Hits: 2835 | Votes: 3 | Added: 2007-11-10 11:33:09)
K CAPTCHA K CAPTCHA
KCAPTCHA is a free and open source PHP solution to generate human validation images (CAPTCHA).

KCAPTCHA is meant to be a very strong protected one but requires no special hosti ...

(Hits: 2318 | Votes: 13 | Added: 2008-05-01 14:04:32)
reCAPTCHA reCAPTCHA
reCAPTCHA helps prevent automated abuse of your site (such as comment spam or bogus registrations) by using a CAPTCHA to ensure that only humans perform certain actions.

  • It ...

(Hits: 1872 | Votes: 6 | Added: 2008-05-01 13:54:33)
Php Captcha Php Captcha

Visual and Audio PHP CAPTCHA Generation Class

PhpCaptcha is a library for generating visual and audio CAPTCHAs (completely automated public Turing test to tell computers and humans a ...

(Hits: 1869 | Votes: 1 | Added: 2008-05-01 13:59:20)
KB Captcha
An easy to implement Captcha Script which does not require images but works on text. Now you can protect your pages with the use of Captcha, you can now have some additional security/authentication/nospam to your web pag ...
(Hits: 1858 | Votes: 0 | Added: 2008-02-28 06:21:59)

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