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Math Captcha image validation
With all the Captcha decoders these days, its impossible to build a solid Captcha image validator with a string. The solution? Have a captcha that asks simple math addition questions! Decoders are not more>> With all the Captcha decoders these days, its impossible to build a solid Captcha image validator with a string. The solution? Have a captcha that asks simple math addition questions! Decoders are not very good at breaking these. This tutorial will show you how to make a basic math CAPTCHA validtion form. This requires that you have the GD library for PHP installed to work.<<less
Added: 2007-02-20 License: GPL Price: Free
622 downloads
CAPTCHA image protection without cookies and sessions
CAPTCHA image protection without cookies and sessions Usually "captcha" scripts store actual text/numbers shown on protection images in a session cookie and check user entered code by comparing it with session stored string. My script does not more>> CAPTCHA image protection without cookies and sessions Usually "captcha" scripts store actual text/numbers shown on protection images in a session cookie and check user entered code by comparing it with session stored string. My script does not use any session/cookies. Image is generated within one script and checked against md5 hash of a random code.<<less
Added: 2007-05-01 License: GPL Price: $0.00USD
13 downloads
CAPTCHA X
This PHP class can be used to perform CAPTCHA validation of human users. more>>
CAPTCHA X offers you a powerful tool that easily performs CAPTCHA validation of human users. It is not only easy to-use but flexible
Major Features:
- Generates an image with a random text rendered in a fuzzy way to make it difficult to guess by robots.
- The configuration details are read from an file in the ini format.
- Several types of options can be configured like the text fonts, letters, colors and the noise level of the generated image.
- The verification image is generated in the JPEG format.
- An MD5 hash of the verification text is stored in a session variable.
Added: 2009-06-25 License: GPL - GNU General Public License Price: GPLGNUGeneralPublicLicense
19 downloads
CAPTCHA Arg 1.0
This PHP class can be used to display and validate text in CAPTCHA images more>>
Captcha-arg-1.0 is a useful tool to display and validate text in CAPTCHA images.
Major Features:
- Generate a random text and generate an image with the text rendered over a base background image.
- The image is saved in PNG format to a local file on the webserver.
- Verify the validation text, as well as generate HTML to display the image along a form text input to let the user enter the validation text.
Requirements:
- PHP 4.0 or higher
Added: 2009-07-04 License: GPL - GNU General Public License Price: GPLGNUGeneralPublicLicense
16 downloads
Captcha
The name of this project tells everything by itself ! Its a little captcha generator which creates human-readable check codes which will keep you away from spammers and flooders. It requires GD librar more>> The name of this project tells everything by itself ! Its a little captcha generator which creates human-readable check codes which will keep you away from spammers and flooders. It requires GD library, Session handling and some files linked at the bottom of this page.<<less
Added: 2006-07-10 License: Free for non-commercial use Price: FreeAdditionalInfofreefornoncommercialuseelse60$
1257 downloads
Captcha ZDR 1
This is simple, complete and powerfull captcha tool written in PHP for protecting your web FORMS from spammers. "Captcha ZDR" offers several methods of captcha protection, string protection, calculation protection (sum and deduction), noise in more>> This is simple, complete and powerfull captcha tool written in PHP for protecting your web FORMS from spammers. "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.<<less
Added: 2007-05-02 License: GPL Price: $0.00USD
16 downloads
Other version of Captcha ZDR
powerfull captcha tool written in PHP for protecting your web FORMS from spammers. 8 unique backgrounds for captcha imageLicense:GPL
Captcher 1.0
Security code image generator and verifier. Requires GD support (most modern PHP installations) and mySQL. No image caching required. Configurable fonts, colors and captcha lengths. more>> Security code image generator and verifier. Requires GD support (most modern PHP installations) and mySQL. No image caching required. Configurable fonts, colors and captcha lengths.<<less
Added: 2006-03-20 License: Freeware Price: $0.00USD
12 downloads
Other version of Captcher
PHP CAPTCHA Tutorial
Captcha stands for "Completely Automated Public Turing test to tell Computers and Humans Apart" and is used for telling humans and computers apart. Here is a tutorial that will teach you how to create your own PHP CAPTCHA. more>> Captcha stands for "Completely Automated Public Turing test to tell Computers and Humans Apart" and is used for telling humans and computers apart. Here is a tutorial that will teach you how to create your own PHP CAPTCHA.<<less
Added: 2008-03-16 License: Freeware Price: $0.00USD
26 downloads
Jax Captcha Class 1.01
Image captchas are effective protections against automatic form SPAM (often used in guestbooks, boards, bloggs etc.) This class will help you to generate captcha checks for your application. more>> Image captchas are effective protections against automatic form SPAM (often used in guestbooks, boards, bloggs etc.) This class will help you to generate captcha checks for your application.<<less
Added: 2005-09-03 License: LGPL Price: $0.00USD
13 downloads
Other version of Jax Captcha Class
Image captchas are effective protections against automatic form SPAM . Image captchas are effective protections against automatic form SPAMLicense:GPL
TheCAPTCHA 1.0
TheCAPTCHA - a powerful PHP script to protect your site from spambots. Free and open-source. Easy to install. TheCAPTCHA is creating much more secure from break CAPTCHA images than any script of previous generation. more>> TheCAPTCHA - a powerful PHP script to protect your site from spambots. Free and open-source. Easy to install. TheCAPTCHA is creating much more secure from break CAPTCHA images than any script of previous generation.<<less
Added: 2007-10-18 License: LGPL Price: $0.00USD
11 downloads
Open Captcha 1.2
OpenCaptcha is a php script designed to dynamically create a captcha image in .png form. It uses a randomly chosen background to start with, then chooses a random string of a randomly chosen length, color, size, font, and orientation. Then it adds more>> OpenCaptcha is a php script designed to dynamically create a captcha image in .png form. It uses a randomly chosen background to start with, then chooses a random string of a randomly chosen length, color, size, font, and orientation. Then it adds randomly coloured and placed lines to create an image that computers cant easily interpret. With OpenCaptcha, you can easily use your own custom backgrounds and fonts to make it fit in better with your overall site design.<<less
Added: 2007-01-30 License: GPL Price: $0.00USD
14 downloads
Other version of Open Captcha
Captcha Verification 1.0
CAPTCHA is the mthod of security that many websites use now. It generates random numbers and/or letters and produces them inside an image. This is done by the use of GD in PHP. more>> CAPTCHA is the mthod of security that many websites use now. It generates random numbers and/or letters and produces them inside an image. This is done by the use of GD in PHP.<<less
Added: 2007-07-12 License: Freeware Price: $0.00USD
12 downloads
Other version of Captcha Verification
CAPTCHA is the mthod of security that many websites use now. It generates random numbers and/or ... letters and produces them inside an image. This is done by the use of GD in PHP. CaptchaLicense:Freeware
Micro Captcha 1.0
Micro Captcha is a simple PHP script which generates captcha images to prevent spam form submissions. The script generates random images with a security code for you. Installation and usage is very simple. All you need to do is insert the php file as an more>> Micro Captcha is a simple PHP script which generates captcha images to prevent spam form submissions. The script generates random images with a security code for you. Installation and usage is very simple. All you need to do is insert the php file as an image source into your form. Later during the form processing you only need to check a session variable. Detailed installation instructions and an example code is also attached.<<less
Added: 2008-01-27 License: Freeware Price: $0.00USD
12 downloads
Click Captcha
Stop the form spammers without aggravating Your customers or members. Works in IE 6 & 7, Firefox 2, Netscape 8.1 and Opera 9.1 browsers. Requirements - php >= 4.3 with GD support. Click Captcha is a r more>> Stop the form spammers without aggravating Your customers or members. Works in IE 6 & 7, Firefox 2, Netscape 8.1 and Opera 9.1 browsers. Requirements - php >= 4.3 with GD support. Click Captcha is a randomly generated gif file that is dynamically displayed in a random area below form with 9 random color combinations and the click number is randomly displayed to the right or left making 18 different images with random numbers from 11 to 99 the generated gif file is less than 0.39 KB.<<less
Added: 2007-05-01 License: Freeware Price: Free
913 downloads
Simple Captcha Script 2
A very simple and light wight Captcha script. This script is different than the usual Captcha scripts and requires users to do a simple mathematical calculation (+ or *) and users often find it easier than conventional Captcha images. more>> A very simple and light wight Captcha script. This script is different than the usual Captcha scripts and requires users to do a simple mathematical calculation (+ or *) and users often find it easier than conventional Captcha images.<<less
Added: 2007-04-26 License: GPL Price: $0.00USD
13 downloads
Other version of Simple Captcha Script
A very simple and light wight Captcha script. This script is different than the usual Captcha ... users often find it easier than conventional Captcha imagesLicense:GPL
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