How to create my own plagiarism checker for wordpress plugin ?

Creating your own plagiarism checker plugin for WordPress involves developing a custom plugin that integrates with a plagiarism detection API. Here’s a step-by-step guide to help you create your own plagiarism checker plugin:

Step 1: Set Up Your Development Environment

1. Local Development Environment: Set up a local WordPress development environment using tools like XAMPP, WAMP, or Local by Flywheel.
2. Text Editor or IDE: Use a code editor like Visual Studio Code, Sublime Text, or PHPStorm.

Step 2: By Create the Plugin Files

1. Create Plugin Directory: In your WordPress wp-content/plugins directory, create a new folder for your plugin, e.g., my-plagiarism-checker.
2. Create Main Plugin File: Inside this folder, create a PHP file, e.g., my-plagiarism-checker.php.

<?php
/*
Plugin Name: My Plagiarism Checker
Description: A custom plagiarism checker plugin for WordPress.
Version: 1.0
Author: Your Name
*/

if (!defined('ABSPATH')) {
    exit; // Exit if accessed directly
}

// Register a menu page in the admin dashboard
function my_pc_add_admin_menu() {
    add_menu_page('Plagiarism Checker', 'Plagiarism Checker', 'manage_options', 'my-pc', 'my_pc_page');
}
add_action('admin_menu', 'my_pc_add_admin_menu');

// Admin page content
function my_pc_page() {
    ?>
    <div class="wrap">
        <h1>Plagiarism Checker</h1>
        <form id="plagiarism-check-form" method="post" action="">
            <textarea name="content" rows="10" cols="100" placeholder="Enter text to check..."></textarea><br>
            <input type="submit" value="Check for Plagiarism">
        </form>
        <div id="plagiarism-result"></div>
    </div>
    <?php
}

// Enqueue JavaScript for AJAX
function my_pc_enqueue_scripts($hook) {
    if ($hook !== 'toplevel_page_my-pc') {
        return;
    }
    wp_enqueue_script('my-pc-script', plugin_dir_url(__FILE__) . 'my-pc-script.js', array('jquery'), null, true);
    wp_localize_script('my-pc-script', 'myPcAjax', array('ajax_url' => admin_url('admin-ajax.php')));
}
add_action('admin_enqueue_scripts', 'my_pc_enqueue_scripts');

// AJAX handler for plagiarism check
function my_pc_check_plagiarism() {
    if (!isset($_POST['content'])) {
        wp_send_json_error('No content provided');
        return;
    }

    $content = sanitize_text_field($_POST['content']);
    $api_key = 'YOUR_API_KEY_HERE';
    $api_url = 'https://your-plagiarism-api.com/check';

    $response = wp_remote_post($api_url, array(
        'body' => json_encode(array('text' => $content)),
        'headers' => array(
            'Content-Type' => 'application/json',
            'Authorization' => 'Bearer ' . $api_key
        )
    ));

    if (is_wp_error($response)) {
        wp_send_json_error('Request failed: ' . $response->get_error_message());
        return;
    }

    $response_code = wp_remote_retrieve_response_code($response);
    if ($response_code !== 200) {
        wp_send_json_error('API error: HTTP ' . $response_code);
        return;
    }

    $body = wp_remote_retrieve_body($response);
    $result = json_decode($body, true);

    if (json_last_error() !== JSON_ERROR_NONE) {
        wp_send_json_error('Failed to parse JSON response');
        return;
    }

    if (isset($result['error'])) {
        wp_send_json_error('API error: ' . $result['error']);
        return;
    }

    wp_send_json_success($result);
}
add_action('wp_ajax_my_pc_check_plagiarism', 'my_pc_check_plagiarism');

Step 3: Now Create JavaScript File for AJAX

Create a JavaScript file in the plugin folder, e.g., my-pc-script.js.

jQuery(document).ready(function ($) {
    $('#plagiarism-check-form').on('submit', function (e) {
        e.preventDefault();

        var content = $(this).find('textarea[name="content"]').val();

        if (content.trim() === '') {
            $('#plagiarism-result').html('<p>Error: Please enter some text to check.</p>');
            return;
        }

        $('#plagiarism-result').html('<p>Checking for plagiarism...</p>');

        $.ajax({
            url: myPcAjax.ajax_url,
            type: 'POST',
            data: {
                action: 'my_pc_check_plagiarism',
                content: content
            },
            success: function (response) {
                if (response.success) {
                    $('#plagiarism-result').html('<pre>' + JSON.stringify(response.data, null, 2) + '</pre>');
                } else {
                    $('#plagiarism-result').html('<p>Error: ' + response.data + '</p>');
                }
            },
            error: function (jqXHR, textStatus, errorThrown) {
                $('#plagiarism-result').html('<p>Error: ' + textStatus + ' - ' + errorThrown + '</p>');
            }
        });
    });
});

Explanation of Error Handling

1. PHP Code:
   • Checks if the content is provided.
   • Handles wp_remote_post errors by checking is_wp_error.
   • Checks the HTTP response code and handles non-200 responses.
   • Checks for JSON parsing errors.
   • Handles API-specific errors if present in the response.
2. JavaScript Code:
   • Checks if the content is empty before sending the request.
   • Displays a loading message while the plagiarism check is in progress.
   • Handles success and error responses from the AJAX request.
   • Provides user-friendly error messages for both AJAX and validation errors.

Step 4: Activate and Test the Plugin

1. Activate the Plugin: Go to the WordPress admin dashboard, navigate to Plugins, and activate your plagiarism checker plugin.
2. Test the Plugin: Go to the new Plagiarism Checker page in the admin menu, enter some text, and submit it to see the plagiarism check results.

Step 5: Improve and Customize

• Error Handling: Add better error handling and user-friendly messages.
• API Integration: Customize the API integration according to the specific plagiarism detection service you choose.
• User Interface: Enhance the user interface for better usability.
• Settings Page: Create a settings page to configure API keys and other options.

This basic example demonstrates how to create a custom plagiarism checker plugin for WordPress. Depending on the plagiarism detection service you choose, you may need to adjust the API integration details.

How this plagiarism checker for wordpress plugin work ?

Creating a custom plagiarism checker plugin for WordPress involves a few essential steps. First, set up a local development environment using tools like XAMPP or Local by Flywheel. Then, create a new plugin directory in wp-content/plugins and a main PHP file, e.g., my-plagiarism-checker.php. In this file, define the plugin metadata, register a menu page, and add necessary scripts for handling plagiarism checks.

Next, create a form in the admin page to accept user input for plagiarism checking. Enqueue a JavaScript file to handle the form submission using AJAX. The AJAX handler in PHP will send a request to a plagiarism detection API, such as Copyscape or another service. It is essential to sanitize user input and handle errors gracefully, including request failures, non-200 HTTP responses, and JSON parsing errors.

The JavaScript file will send the content to be checked via an AJAX request and display the results or errors received from the server. Proper error handling ensures that users receive informative messages in case of issues like empty content, request failures, or API errors.

By following these steps, you can create a functional plagiarism checker plugin for WordPress that provides a user-friendly experience and ensures content originality.