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Example code of zaymedia/captcha

Informations about the package captcha

Captcha

Is an easy to install self-hosted image captcha library. Through a predefined dictionary, the library generates images that must be selected in a specific order.

This captcha solution may not be 100% secure against bots, but in combination with other popular captcha services, it will be an extra layer of security for your platform.

example

Contents

Installation

You can install the package via composer:

Usage

To get started with the package, you must use the make() static method and pass as first parameter an identifier string. This identifier parameter will be used to store & get the generated challenge and solution.

Generally you should use the user id, ip address, or a generated cookie.

Cache Adapters

In order to use the Captcha class, you will need to choose a cache adapter so it can store the generated challenges somewhere. The package ships by default with the following adapters:

However, you can create and use your own adapter extending the abstract adapter class:

Generate Links

You can generate / retrieve captcha links using the generateLinks() method. You can pass as first parameter the amount of links to generate. This method gets the generated links value from the cache, and generate if links are not found.

Validate Answer

You can validate the user answer with the validateAnswer() method.

Flush Links

You can flush the current cache value and force re-generate a new captcha challenge. It's highly recommended to use this method when the user sends a wrong a answer.

Customize Options

There are some few options that you can enable / disable when generating Captcha image.

You can also customize the word universe. You can overwrite the word universe or merge your array with the default one.

License

Captcha is open-sourced software licensed under the MIT license.

All versions of captcha with dependencies

PHP Build Version
Package Version
Requires php Version ^8.0
intervention/image Version ^2.7
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