How to Build a Personalized Chatbot with ChatGPT PHP in a Custom WordPress Plugin

Posted on 19th June 2023

In this article, we’re going to show you how to build a personalized chatbot using ChatGPT PHP in a custom WordPress plugin. We’ll cover everything from installing the dependencies to setting up the user interface. By the end of this article, you’ll have a fully functioning chatbot that you can use on your WordPress website.

Installing the Dependencies

The first thing you need to do is install the dependencies. For this tutorial, we’ll be using the following:

• ChatGPT PHP
• WordPress
• A Web Host

You can install WordPress and ChatGPT PHP on your local machine or on a web host. If you want to install WordPress locally, we recommend using MAMP. If you want to install ChatGPT PHP locally, we recommend using Composer.

Creating the Plugin

Once you have the dependencies installed, you’re ready to start creating the plugin. The first thing you need to do is create a directory for your plugin. For this tutorial, we’ll be using the following directory structure:


/wp-content/plugins/my-chatbot-plugin/


In the my-chatbot-plugin directory, you need to create a file called plugin.php. This is the main file for your plugin. In this file, you need to include the following code:

plugin_name = ‘my-chatbot-plugin’;
$this->version = ‘1.0.0’;

$this->load_dependencies();
$this->set_locale();
$this->define_admin_hooks();
$this->define_public_hooks();
}

/**
* Loads the required dependencies.
*
* @since 1.0.0
* @access private
*/
private function load_dependencies() {
require_once plugin_dir_path( dirname( __FILE__ ) ) . ‘includes/class-my-chatbot-plugin-loader.php’;
require_once plugin_dir_path( dirname( __FILE__ ) ) . ‘includes/class-my-chatbot-plugin-i18n.php’;
require_once plugin_dir_path( dirname( __FILE__ ) ) . ‘admin/class-my-chatbot-plugin-admin.php’;
require_once plugin_dir_path( dirname( __FILE__ ) ) . ‘public/class-my-chatbot-plugin-public.php’;

$this->loader = new My_Chatbot_Plugin_Loader();
}

/**
* Defines the locale for this plugin so that it is ready for translation.
*
* @since 1.0.0
* @access private
*/
private function set_locale() {
$plugin_i18n = new My_Chatbot_Plugin_i18n();

$this->loader->add_action( ‘plugins_loaded’, $plugin_i18n, ‘load_plugin_textdomain’ );
}

/**
* Registers all of the hooks related to the admin area functionality
* of the plugin.
*
* @since 1.0.0
* @access private
*/
private function define_admin_hooks() {
$plugin_admin = new My_Chatbot_Plugin_Admin( $this->get_plugin_name(), $this->get_version() );

$this->loader->add_action( ‘admin_enqueue_scripts’, $plugin_admin, ‘enqueue_styles’ );
$this->loader->add_action( ‘admin_enqueue_scripts’, $plugin_admin, ‘enqueue_scripts’ );
}

/**
* Registers all of the hooks related to the public-facing functionality
* of the plugin.
*
* @since 1.0.0
* @access private
*/
private function define_public_hooks() {
$plugin_public = new My_Chatbot_Plugin_Public( $this->get_plugin_name(), $this->get_version() );

$this->loader->add_action( ‘wp_enqueue_scripts’, $plugin_public, ‘enqueue_styles’ );
$this->loader->add_action( ‘wp_enqueue_scripts’, $plugin_public, ‘enqueue_scripts’ );
}

/**
* Runs the loader to execute all of the hooks with WordPress.
*
* @since 1.0.0
* @access public
*/
public function run() {
$this->loader->run();
}

/**
* The name of the plugin used to uniquely identify it within the context of
* WordPress and to define internationalization functionality.
*
* @since 1.0.0
* @access public
* @return string The name of the plugin.
*/
public function get_plugin_name() {
return $this->plugin_name;
}

/**
* Retrieves the version number of the plugin.
*
* @since 1.0.0
* @access public
* @return string The version number of the plugin.
*/
public function get_version() {
return $this->version;
}

}

?>

In the code above, we’ve defined the plugin name, plugin URI, description, version, author, author URI, license, text domain, and plugin directory. We’ve also included the autoloader and the dependencies.

Creating the User Interface

Now that we have the plugin skeleton set up, we can start creating the user interface. The first thing we need to do is create a file called admin.php in the admin

If you want to keep your chatbot private to your website only, then you can do so by building it into a custom WordPress plugin. In this article, we’ll show you how to build a personalized chatbot with ChatGPT PHP in a custom WordPress plugin.

First, you’ll need to create a new plugin and include the ChatGPT PHP library. You can do this by following the instructions in the ChatGPT PHP documentation.

Once you’ve done that, you’ll need to create a file called chatbot.php in your plugin’s directory. In this file, you’ll need to create a class that extends the ChatGPT class.

In your chatbot class, you’ll need to override the getResponse() method. This method should return a string containing the chatbot’s response to the user’s input.

You can use the following code as a starting point:

getResponse($input, array(

‘name’ => ‘My Chatbot’,

‘maxLength’ => 100,

));

If you want to learn more about the ChatGPT PHP library, be sure to check out the documentation.