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Example code of jacopovalanzano/php-captcha

Informations about the package php-captcha

PHP Captcha

Portable PHP class for creating simple captchas. One file. Great for simple projects.

captcha1

captcha2

NOTE: this captcha is not a final solution to combat bots, but will stop avid and raging attackers.

For comparison, below is an example of a captcha used by tesla.com:

tesla-captcha

Microsoft (live.com):

live.com-captcha

Installation

Install with composer, or use the contents of the src folder.

Requires PHP ^5.4 and PHP-GD.

Usage

The captcha is a binary jpeg image, it can be rendered with the "image/jpeg" content-type header.

Example

A simple example to explain the process of dispatching/retrieving the captcha and its passphrase:

An example of a form you need to validate, like a login form:

Or

Match against the value passed from the input "captcha_passphrase" in the example above, eg:

Tests

Tested with GNU ocrad and Xevil

xevil

Contributing

Pull requests are welcome.

License

MIT

All versions of php-captcha with dependencies

PHP Build Version
Package Version
Requires php Version ^5.4|^7.0|^8.0
ext-gd Version ^7.0
Composer command for our command line client (download client) This client runs in each environment. You don't need a specific PHP version etc. The first 20 API calls are free. Standard composer command

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