Creating a WordPress SEO plugin similar to Yoast SEO is a complex task that requires a deep understanding of WordPress development, PHP, JavaScript, and SEO best practices. Below, I’ll provide a basic structure for your plugin, DyDevOps All in One SEO, along with the necessary files. However, this will be a simplified version and won’t have all the advanced features of Yoast SEO.
DyDevOps All in One SEO Plugin Structure
- Main Plugin File:
dydevops-all-in-one-seo.php
- Admin Settings Page:
admin/settings.php
- Meta Box for Posts/Pages:
includes/meta-box.php
- Frontend Meta Tags:
includes/frontend.php
- Stylesheet:
assets/css/style.css
- JavaScript:
assets/js/script.js
- Readme File:
readme.txt
Step-by-Step Guide
1. Main Plugin File (dydevops-all-in-one-seo.php
)
This file initializes the plugin and loads necessary components.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 |
<?php /* Plugin Name: DyDevOps All in One SEO Plugin URI: https://dydevops.com Description: A complete SEO solution for your WordPress website. Version: 1.0 Author: DyDevOps Author URI: https://dydevops.com License: GPLv2 or later Text Domain: dydevops-seo */ // Prevent direct access if (!defined('ABSPATH')) { exit; } // Define plugin constants define('DYDVOPPS_SEO_VERSION', '1.0'); define('DYDVOPPS_SEO_PLUGIN_DIR', plugin_dir_path(__FILE__)); define('DYDVOPPS_SEO_PLUGIN_URL', plugin_dir_url(__FILE__)); // Include necessary files require_once DYDVOPPS_SEO_PLUGIN_DIR . 'admin/settings.php'; require_once DYDVOPPS_SEO_PLUGIN_DIR . 'includes/meta-box.php'; require_once DYDVOPPS_SEO_PLUGIN_DIR . 'includes/frontend.php'; // Enqueue scripts and styles function dydevops_seo_enqueue_scripts() { wp_enqueue_style('dydevops-seo-style', DYDVOPPS_SEO_PLUGIN_URL . 'assets/css/style.css'); wp_enqueue_script('dydevops-seo-script', DYDVOPPS_SEO_PLUGIN_URL . 'assets/js/script.js', array('jquery'), null, true); } add_action('admin_enqueue_scripts', 'dydevops_seo_enqueue_scripts'); |
2. Admin Settings Page (admin/settings.php
)
This file creates a settings page in the WordPress admin dashboard.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 |
<?php function dydevops_seo_settings_page() { add_menu_page( 'DyDevOps SEO Settings', 'DyDevOps SEO', 'manage_options', 'dydevops-seo-settings', 'dydevops_seo_settings_page_html', 'dashicons-admin-tools', 100 ); } add_action('admin_menu', 'dydevops_seo_settings_page'); function dydevops_seo_settings_page_html() { if (!current_user_can('manage_options')) { return; } ?> <div class="wrap"> <h1><?php echo esc_html(get_admin_page_title()); ?></h1> <form action="options.php" method="post"> <?php settings_fields('dydevops_seo_options'); do_settings_sections('dydevops-seo-settings'); submit_button('Save Settings'); ?> </form> </div> <?php } function dydevops_seo_settings_init() { register_setting('dydevops_seo_options', 'dydevops_seo_options'); add_settings_section( 'dydevops_seo_main_section', 'Main Settings', null, 'dydevops-seo-settings' ); add_settings_field( 'dydevops_seo_field_meta_title', 'Default Meta Title', 'dydevops_seo_field_meta_title_cb', 'dydevops-seo-settings', 'dydevops_seo_main_section' ); add_settings_field( 'dydevops_seo_field_meta_description', 'Default Meta Description', 'dydevops_seo_field_meta_description_cb', 'dydevops-seo-settings', 'dydevops_seo_main_section' ); } add_action('admin_init', 'dydevops_seo_settings_init'); function dydevops_seo_field_meta_title_cb() { $options = get_option('dydevops_seo_options'); ?> <input type="text" name="dydevops_seo_options[meta_title]" value="<?php echo esc_attr($options['meta_title'] ?? ''); ?>"> <?php } function dydevops_seo_field_meta_description_cb() { $options = get_option('dydevops_seo_options'); ?> <textarea name="dydevops_seo_options[meta_description]"><?php echo esc_textarea($options['meta_description'] ?? ''); ?></textarea> <?php } |
3. Meta Box for Posts/Pages (includes/meta-box.php
)
This file adds a meta box to the post/page editor for custom SEO fields.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 |
<?php function dydevops_seo_add_meta_box() { add_meta_box( 'dydevops_seo_meta_box', 'DyDevOps SEO Settings', 'dydevops_seo_meta_box_html', ['post', 'page'], 'normal', 'high' ); } add_action('add_meta_boxes', 'dydevops_seo_add_meta_box'); function dydevops_seo_meta_box_html($post) { $meta_title = get_post_meta($post->ID, '_dydevops_seo_meta_title', true); $meta_description = get_post_meta($post->ID, '_dydevops_seo_meta_description', true); wp_nonce_field('dydevops_seo_meta_box', 'dydevops_seo_meta_box_nonce'); ?> <p> <label for="dydevops_seo_meta_title">Meta Title:</label> <input type="text" id="dydevops_seo_meta_title" name="dydevops_seo_meta_title" value="<?php echo esc_attr($meta_title); ?>" style="width: 100%;"> </p> <p> <label for="dydevops_seo_meta_description">Meta Description:</label> <textarea id="dydevops_seo_meta_description" name="dydevops_seo_meta_description" style="width: 100%;"><?php echo esc_textarea($meta_description); ?></textarea> </p> <?php } function dydevops_seo_save_meta_box($post_id) { if (!isset($_POST['dydevops_seo_meta_box_nonce']) || !wp_verify_nonce($_POST['dydevops_seo_meta_box_nonce'], 'dydevops_seo_meta_box')) { return; } if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) { return; } if (!current_user_can('edit_post', $post_id)) { return; } if (isset($_POST['dydevops_seo_meta_title'])) { update_post_meta($post_id, '_dydevops_seo_meta_title', sanitize_text_field($_POST['dydevops_seo_meta_title'])); } if (isset($_POST['dydevops_seo_meta_description'])) { update_post_meta($post_id, '_dydevops_seo_meta_description', sanitize_textarea_field($_POST['dydevops_seo_meta_description'])); } } add_action('save_post', 'dydevops_seo_save_meta_box'); |
4. Frontend Meta Tags (includes/frontend.php
)
This file outputs the meta tags in the <head>
section of the website.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 |
<?php function dydevops_seo_add_meta_tags() { if (is_singular()) { global $post; $meta_title = get_post_meta($post->ID, '_dydevops_seo_meta_title', true); $meta_description = get_post_meta($post->ID, '_dydevops_seo_meta_description', true); if (!empty($meta_title)) { echo '<meta name="title" content="' . esc_attr($meta_title) . '">' . "\n"; } if (!empty($meta_description)) { echo '<meta name="description" content="' . esc_attr($meta_description) . '">' . "\n"; } } } add_action('wp_head', 'dydevops_seo_add_meta_tags'); |
5. Stylesheet (assets/css/style.css
)
Add basic styles for the admin interface.
1 2 3 4 5 6 |
/* Basic styles for the admin interface */ .dydevops-seo-settings input[type="text"], .dydevops-seo-settings textarea { width: 100%; max-width: 600px; } |
6. JavaScript (assets/js/script.js
)
Add any necessary JavaScript functionality.
1 2 3 |
jQuery(document).ready(function($) { // Add JavaScript functionality here }); |
7. Readme File (readme.txt
)
Provide plugin details for the WordPress repository.
1 2 3 4 5 6 7 8 9 10 |
=== DyDevOps All in One SEO === Contributors: DyDevOps Tags: seo, meta tags, optimization Requires at least: 5.0 Tested up to: 6.0 Stable tag: 1.0 License: GPLv2 or later License URI: https://www.gnu.org/licenses/gpl-2.0.html A complete SEO solution for your WordPress website. |
This is a basic version of an SEO plugin. To make it as powerful as Yoast SEO, you’ll need to add features like XML sitemaps, schema markup, social media integration, and more.