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			All class groups	>	Search tags: CAPTCHA

	1. CAPTCHA 2

Supplied by: Cristian Navalici <e-mail contact>

Generate CAPTCHA validation images

This class can be used to generate images for CAPTCHA validation.
Now it's a brand new class. More complicated captchas, cleaner code.

Peace.

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`Good (90.6%)`	`Good (84.4%)`	`Sufficient (75.0%)`	`Good (87.5%)`	`-`	`-`	`Sufficient (70.0%)`	186
Month:	Not yet rated by the users

	2. PHP CAPTCHA with Refresh

Supplied by: Sanjoy Ganguly <e-mail contact>

Generate CAPTCHA validation images

This class can be used to generate CAPTCHA validation images.

It generates an image with a given width and height display a random validation text with a given length. The generated random text is stored in a session variable for posterior validation.

The generated image is obfuscated by a given background image before being served as the current script output in JPEG format.

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`Good (93.8%)`	`Good (81.2%)`	`-`	`Good (93.8%)`	`-`	`-`	`Sufficient (64.4%)`	511
Month:	Not yet rated by the users

	3. CAPTCHA

Supplied by: Pascal Rehfeldt <e-mail contact>

Class to generate little CAPTCHA pictures

A CAPTCHA (Completely Automated Public Turing to tell Computers from Humans Apart) is a program that can generate and grade tests that:

- Most humans can pass.
- Current computer programs cannot pass.

For example, humans can read distorted text but current computer programs cannot.

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`Good (80.7%)`	`Good (80.3%)`	`Sufficient (69.7%)`	`Sufficient (73.9%)`	`-`	`-`	`Sufficient (62.7%)`	625
Month:	Not yet rated by the users

	4. Another CAPTCHA project

Supplied by: László Zsidi <e-mail contact>

CAPTCHA validation using animated images

This package can be used to perform human user validation using CAPTCHA images (Completely Automated Public Turing to tell Computers from Humans Apart).

It 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.

The text length, color and font are configurable.

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`Good (90.0%)`	`Sufficient (76.7%)`	`-`	`Sufficient (78.3%)`	`-`	`-`	`Sufficient (60.5%)`	812
Month:	Not yet rated by the users

	5. Captcha Numbers

Supplied by: Hadar Porat <e-mail contact>

Generate CAPTCHA validation images

This class can generate images for use in CAPTCHA based validation tests (Completely Automated Public Turing test to tell Computers from Humans Apart).

It can generate an image with a random sequence of numbers over a grid of lines. The numbers and the grid are rendered in configurable colors. The numbers are rendered using a given TrueType font.

The image can be generated in either GIF, JPEG or PNG formats. The default format is PNG.

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`Sufficient (71.9%)`	`Good (81.2%)`	`Sufficient (71.9%)`	`Good (81.2%)`	`-`	`-`	`Not sure (59.4%)`	885
Month:	Not yet rated by the users

	6. ASCII CAPTCHA

Supplied by: Debug <e-mail contact>

CAPTCHA validation using ASCII art text

This class can be used to perform CAPTCHA validation, display text letters using ASCII art fonts.

It 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 random validation text and the rendered text are returned as strings.

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`Good (80.8%)`	`Good (80.8%)`	`Sufficient (77.1%)`	`-`	`-`	`-`	`Not sure (56.2%)`	1102
Month:	Not yet rated by the users

	7. AJAX CAPTCHA

Supplied by: dhayalan <e-mail contact>

Generate image for CAPTCHA validation

This class can be use to generate image for CAPTCHA validation.

It can generate a random validation text with a given length and draw the text in an image obfuscated with random lines and ellipse shapes.

The generated text is stored in a session variable for posterior use in CAPTCHA code verification.

The class generates the validation image in JPEG format as the current script output. It also returns an HTML image tag to embed the image in a validation page.

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`Not sure (50.0%)`	`Not sure (50.0%)`	`Not sure (50.0%)`	`Insufficient (33.3%)`	`-`	`-`	`Insufficient (38.3%)`	2079
Month:	Not yet rated by the users

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