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Example code of wackowiki/freecap

Informations about the package freecap

freeCap

A modern, object-oriented CAPTCHA library for PHP 8.2+, originally created by Howard Yeend and maintained by the WackoWiki Team. freeCap uses GD to generate highly obfuscated, OCR-resistant CAPTCHA images.

This version has been completely refactored to support Composer, PSR-4 autoloading, custom session adapters, and strict standards. It retains all of the original's educational inline comments and OCR circumvention logic.

Features

Requirements

Installation

Install via Composer:

Directory Structure

Ensure your .ht_freecap_* assets (fonts, dictionaries, background images) are placed in a resources/ directory at the root of your project or package.

Basic Usage

1. Rendering the CAPTCHA Image

In your routing or controller logic, initialize the adapter and call render(). This outputs the image directly to the browser with the correct Content-Type headers.

2. Displaying in HTML

3. Validating User Input

In your form processing logic, verify the submitted word against the session hash. Make sure to set the freecap_shown flag when the form page loads so the validator knows a CAPTCHA was issued.

Configuration Options

You can override default behaviors by passing an array to the FreeCap constructor.

Custom Session Adapters

If you are not using native PHP sessions, you can create your own adapter by implementing the FreeCap\AdapterInterface.

Testing

The package includes PHPUnit 11 tests. To run the test suite:

Credits

License

This project is licensed under the GNU General Public License v2.0 or later. See the LICENSE file for more details.

All versions of freecap with dependencies

PHP Build Version
Package Version
Requires php Version >=8.2
ext-gd Version *
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