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2093 total visitsCAPTCHA X 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 ... -
1765 total visitsA list of allowed characters are used to generate random text. The text is rendered as an image with several effects to distort the characters and make it more difficult to guess by automated programs. The text is rendered with fonts defined as images in the PNG format. So it does not need any PHP special font engine library extensions.The ...
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1633 total visitsAnimated Simple CAPTCHA generates a random text that is stored in a session for posterior user validation. It renders a series of frames with the text obfuscated by animated letters, grids and optional random fonts.The user can read the text when the animated frames are displayed but robots will have difficult to figure what the text is. The text submitted ...
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1885 total visitsAnimated CAPTCHA generates an animated GIF image that displays a mathematical expression of a simple operation between two random numbers, like sum, subtraction and multiplication.Session variables are used to store the numbers and the operation for posterior use.Requirements: PHP 4.0 or higher
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2033 total visitsCAPTCHA by Anchal can generate an image with a text string with a variable length of a set of allowed characters. It generates an image with the generated text obfuscated by noise text or grid lines.The generated image is stored in a JPEG format file created in a temporary server directory. The text entered by the user can also be ...
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1461 total visitsAnother CAPTCHA project generates a sequence of animated images, assembled with in a GIF animation file, to make it more difficult to break by robots because the validation text does not completely appear in each of the animation images.Things like the text length, color and font can be configured.
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1874 total visitsAn image with a random key string on a noisy background constructed from random text characters or line grid, is generated.The image is meant to be used in a form so the user reads the key text in the image and must enter it to prove that is a real human.The form also passes an hidden field that contains a ...
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2176 total visitsASCII CAPTCHA generates a CAPTCHA validation text string with random letters and then renders that text as an ASCII art string with multiple lines that represent the validation text with some distortion and noise characters.The rendered text and the random validation text are returned as strings.Requirements:PHP 3.0 or higher
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1713 total visitsdm.KittenAuth implements a CAPTCHA validation solution using groups of images and associated questions.dm.KittenAuth can generate a form to let a user pick images for one or more groups of images stored in a MySQL database.The user must pick the right images according to the questions associated to the group of images being presented.
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1488 total visitsFox captcha generates an image of a given width and height with a sequence of random hexadecimal digits over a set of random lines.The digits and the lines are rendered with the same foreground color. The foreground and background colors are generated randomly. The background color is always darker than the foreground color to assure high contrast.The image is generated ...
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1855 total visitsKG CAPTCHA Class renders a random text with letters and digits in an image. The rendered text is stored in a session variable for posterior validation.A random background is inserted behind the rendered text on the generate image. The length of the validation text, the colors, and text fonts are configurable.The validation image can be generated in the GIF, PNG ...
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2012 total visitsA CAPTCHA (Completely Automated Public Turing to tell Computers from Humans Apart) is a test that most humans can pass, but computers can't.Requirements:PHP 4.0.1 or higher
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2000 total visitsAMDev_Captcha generates a CAPTCHA validation images to embed in forms.Features of AMDev_Captcha:- Case-sensitive validation option- Display an optional refresh link to generate a new picture with a different key using AJAX. Generating a new text this way does not count to the user attempts limit verification.- Use of prefix for image file names- Optional garbage collector to remove generated files ...
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1921 total visitsCaptcha ZDR 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.
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1790 total visitsZZEE Human Pictcha is a protection in a form of an image (a captcha), which can be embedded inside your web forms, and which will filter out various forum spam, guestbook spam, form spam, signup spam, password attacks, etc. It is a library and a set of tools and examples for PHP and can be used with Perl as well. ...
