{"id":1275,"date":"2023-08-15T13:36:26","date_gmt":"2023-08-15T08:06:26","guid":{"rendered":"https:\/\/idevelop.pro\/blog\/?p=1275"},"modified":"2023-08-15T13:51:08","modified_gmt":"2023-08-15T08:21:08","slug":"how-to-develop-wordpress-plugin-in-2023","status":"publish","type":"post","link":"https:\/\/idevelop.pro\/blog\/how-to-develop-wordpress-plugin-in-2023\/","title":{"rendered":"An Expert Guide: How to Develop WordPress Plugin in 2023 (Beginner&#8217;s Guide)"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/idevelop.pro\/blog\/how-to-develop-wordpress-plugin-in-2023\/#Introduction\" >Introduction<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/idevelop.pro\/blog\/how-to-develop-wordpress-plugin-in-2023\/#Understanding_WordPress_Plugins\" >Understanding WordPress Plugins<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/idevelop.pro\/blog\/how-to-develop-wordpress-plugin-in-2023\/#Getting_Started_with_Plugin_Development\" >Getting Started with Plugin Development<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/idevelop.pro\/blog\/how-to-develop-wordpress-plugin-in-2023\/#Creating_Your_First_Plugin_How_to_develop_WordPress_plugin\" >Creating Your First Plugin: How to develop WordPress plugin<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/idevelop.pro\/blog\/how-to-develop-wordpress-plugin-in-2023\/#Adding_Functionality_to_Your_Plugin\" >Adding Functionality to Your Plugin<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/idevelop.pro\/blog\/how-to-develop-wordpress-plugin-in-2023\/#Working_with_Plugin_Settings\" >Working with Plugin Settings<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/idevelop.pro\/blog\/how-to-develop-wordpress-plugin-in-2023\/#Advanced_Plugin_Development\" >Advanced Plugin Development<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/idevelop.pro\/blog\/how-to-develop-wordpress-plugin-in-2023\/#Testing_and_Debugging\" >Testing and Debugging<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/idevelop.pro\/blog\/how-to-develop-wordpress-plugin-in-2023\/#Security_and_Best_Practices\" >Security and Best Practices<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/idevelop.pro\/blog\/how-to-develop-wordpress-plugin-in-2023\/#Conclusion\" >Conclusion<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Introduction\"><\/span>Introduction<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">WordPress, the powerhouse of website creation, owes much of its flexibility and versatility to plugins. These magical little extensions allow you to tailor your website&#8217;s functionality without diving into complex code. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">As I embarked on my journey of how to develop WordPress plugin? I found that creating my own plugins was not only empowering but also crucial for optimizing my website. \ud83d\ude80 <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In this guide, I&#8217;ll walk you through the exciting world of plugin development, step by step. <strong>No need for coding wizardry \u2013 just your enthusiasm and a sprinkle of code magic!<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Understanding_WordPress_Plugins\"><\/span>Understanding WordPress Plugins<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>WordPress plugins are like magic tools that instantly boost your site&#8217;s superpowers. \ud83d\ude80 <\/li>\n\n\n\n<li>They&#8217;re simple to use, even if you&#8217;re not a coding wizard! \u2728 <\/li>\n\n\n\n<li>These little gems are like Lego blocks, adding cool features like forms, social sharing buttons, and online stores. \ud83c\udfea <\/li>\n\n\n\n<li>You can find them in your dashboard&#8217;s &#8216;Plugins&#8217; section, and adding them is as easy as a snap! <\/li>\n\n\n\n<li><strong>But remember, too many plugins can slow down your site&#8217;s dance moves. \ud83d\udc83 So, choose wisely, and let your site shine! \u2728\ud83c\udf1f<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Example<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Imagine you have a blog and want to add a subscription form at the end of each post. A plugin can make this process as simple as waving a wand. Let&#8217;s take a look at a basic plugin that adds a &#8220;Subscribe&#8221; button below each blog post.<\/p>\n\n\n\n<pre><code class=\"language-php\">\n&lt;?php\n\/*\nPlugin Name: Subscribe Button\nDescription: Adds a subscribe button to the end of blog posts.\nVersion: 1.0\nAuthor: Your Name\n*\/\n\nfunction add_subscribe_button($content) {\n    if (is_single()) {\n        $content .= '&lt;p&gt;Enjoyed this post? &lt;a href=\"#\"&gt;Subscribe&lt;\/a&gt; for more!&lt;\/p&gt;';\n    }\n    return $content;\n}\n\nadd_filter('the_content', 'add_subscribe_button');\n?&gt;\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Getting_Started_with_Plugin_Development\"><\/span>Getting Started with Plugin Development<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"> Before you dive into the world of plugin development, it&#8217;s essential to set up your magical workshop \u2013 a development environment. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">I chose a local server environment using tools like XAMPP or WAMP. These tools create a space where you can test your plugins away from your live website. \ud83c\udff0<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Creating_Your_First_Plugin_How_to_develop_WordPress_plugin\"><\/span>Creating Your First Plugin: How to develop WordPress plugin<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">With your magical workshop in place, it&#8217;s time to conjure your very first plugin. Don&#8217;t worry, there&#8217;s no need for a wizard&#8217;s staff here \u2013 just your trusty code editor. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Every WordPress plugin starts with a sprinkle of metadata and a dash of PHP. I remember creating my first &#8220;Hello World&#8221; plugin, and it felt like casting my first spell! \ud83d\udd2e<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Example<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Let&#8217;s create a plugin that displays a custom greeting message on your website&#8217;s homepage. This friendly message will welcome your visitors with warmth and a touch of enchantment.<\/p>\n\n\n\n<pre><code class=\"language-php\">\n&lt;?php\n\/*\nPlugin Name: Welcome Greeting\nDescription: Displays a custom greeting message on the homepage.\nVersion: 1.0\nAuthor: Your Name\n*\/\n\nfunction display_welcome_greeting() {\n    if (is_home()) {\n        echo '&lt;p&gt;Welcome to iDevelop.PRO! \ud83c\udf1f&lt;\/p&gt;';\n    }\n}\n\nadd_action('wp_footer', 'display_welcome_greeting');\n?&gt;\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Adding_Functionality_to_Your_Plugin\"><\/span>Adding Functionality to Your Plugin<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Now comes the part where your plugin gains its magic powers! You can weave spells with WordPress hooks and filters, which allow you to interact with the core code. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hooks are like magical entry points that let you insert your code at specific locations, while filters allow you to modify data before it&#8217;s displayed. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Imagine them as the portals through which you channel your magic into WordPress. \u2728<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Example<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Let&#8217;s dive into an advanced plugin example that utilizes hooks and filters to enhance functionality. In this example, we&#8217;ll create a plugin called <strong>&#8220;Custom Post Styler&#8221;<\/strong> that adds a unique style to specific post types. We&#8217;ll use hooks and filters to achieve this.<\/p>\n\n\n\n<pre><code class=\"language-php\">\n&lt;?php\n\/*\nPlugin Name: Custom Post Styler\nDescription: Adds a custom style to specific post types.\nVersion: 1.0\nAuthor: Your Name\n*\/\n\nfunction add_custom_post_style($content) {\n    if (is_single() &amp;&amp; (get_post_type() === 'product' || get_post_type() === 'event')) {\n        $styled_content = '&lt;div style=\"border: 2px solid #3498db; padding: 10px;\"&gt;' . $content . '&lt;\/div&gt;';\n        return $styled_content;\n    }\n    return $content;\n}\n\nadd_filter('the_content', 'add_custom_post_style');\n\nfunction custom_post_style_script() {\n    if (is_single() &amp;&amp; (get_post_type() === 'product' || get_post_type() === 'event')) {\n        wp_enqueue_style('custom-post-style', plugin_dir_url(__FILE__) . 'custom-style.css');\n    }\n}\n\nadd_action('wp_enqueue_scripts', 'custom_post_style_script');\n?&gt;\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">In this example, our &#8220;Custom Post Styler&#8221; plugin adds a custom style to posts of the &#8216;product&#8217; and &#8216;event&#8217; post types. Here&#8217;s how it works:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The <strong>add_custom_post_style<\/strong> function checks if the current page is a single post of the &#8216;product&#8217; or &#8216;event&#8217; <strong>post type<\/strong>. If true, it wraps the post content in a styled div element.<\/li>\n\n\n\n<li>The <strong>custom_post_style_script<\/strong> function enqueues a custom CSS file named <strong>custom-style.css <\/strong>only if the current page is a single post of the &#8216;product&#8217; or &#8216;event&#8217; post type.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">This example showcases how hooks and filters can be harnessed to dynamically add styles and scripts to specific post types, elevating the visual experience for your website visitors.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Working_with_Plugin_Settings\"><\/span>Working with Plugin Settings<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Just like a skilled mage fine-tunes their spells, as a plugin developer, you can empower users with the ability to customize plugin behavior. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">WordPress offers an elegant way to create settings pages where users can tweak options to their liking. Think of it as allowing them to adjust the spell&#8217;s intensity. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is very useful for delivering a personalized experience while keeping your codebase clean. \ud83d\udee0\ufe0f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Example<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Consider our <strong>&#8220;Subscribe Button&#8221;<\/strong> plugin. To provide users with flexibility, we can allow them to choose where the button appears \u2013 either at the beginning or end of the post. Here&#8217;s how we can create a settings page and store the user&#8217;s preference:<\/p>\n\n\n\n<pre><code class=\"language-php\">\n&lt;?php\n\/\/ In your plugin's main file\nfunction subscribe_button_settings_page() {\n    add_submenu_page(\n        'options-general.php',\n        'Subscribe Button Settings',\n        'Subscribe Button',\n        'manage_options',\n        'subscribe-button',\n        'display_subscribe_button_settings'\n    );\n}\n\nfunction display_subscribe_button_settings() {\n    ?>\n    &lt;div class=\"wrap\"&gt;\n        &lt;h2&gt;Subscribe Button Settings&lt;\/h2&gt;\n        &lt;form method=\"post\" action=\"options.php\"&gt;\n            &lt;?php settings_fields('subscribe-button-settings'); ?&gt;\n            &lt;?php do_settings_sections('subscribe-button-settings'); ?&gt;\n            &lt;?php submit_button(); ?&gt;\n        &lt;\/form&gt;\n    &lt;\/div&gt;\n    &lt;?php\n}\n\nadd_action('admin_menu', 'subscribe_button_settings_page');\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Advanced_Plugin_Development\"><\/span>Advanced Plugin Development<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Once you&#8217;ve mastered the basics, it&#8217;s time to level up your plugin crafting skills. Explore advanced techniques like AJAX integration to create seamless interactions, or create your own custom post types for specialized content. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">These advanced tricks will truly showcase your plugin mastery. \ud83c\udf1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Example<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Imagine you&#8217;re developing a plugin that showcases a portfolio of your magical creations. You could create a custom post type called &#8220;Spells,&#8221; each with its own unique properties like spell level, incantation, and enchantment type. Here&#8217;s a snippet to help you create a custom post type:<\/p>\n\n\n\n<pre><code class=\"language-php\">\n&lt;?php\n\/\/ In your plugin's main file\nfunction create_spell_post_type() {\n    register_post_type('spell', [\n        'public' =&gt; true,\n        'label' =&gt; 'Spells',\n        'supports' =&gt; ['title', 'editor', 'thumbnail'],\n        'taxonomies' =&gt; ['category'],\n    ]);\n}\n\nadd_action('init', 'create_spell_post_type');\n&lt;?php\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Testing_and_Debugging\"><\/span>Testing and Debugging<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Even the most seasoned spellcaster can stumble upon a bug or two. That&#8217;s where testing and debugging come to the rescue. Just as you would fine-tune a magical ritual, meticulously test your plugins to ensure they work like a charm. WordPress offers debugging tools and practices that help you identify and fix issues, ensuring a smooth user experience. \ud83d\udc1e<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Example<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Suppose you encounter an issue where your plugin isn&#8217;t displaying the &#8220;Subscribe&#8221; button as expected. You can use the <strong>error_log()<\/strong> function to log messages to the server&#8217;s error log for debugging:<\/p>\n\n\n\n<pre><code class=\"language-php\">\n&lt;?php\nfunction add_subscribe_button($content) {\n    error_log('Adding subscribe button.'); \/\/ Debugging message\n    if (is_single()) {\n        $content .= '&lt;p&gt;Enjoyed this post? &lt;a href=\"#\"&gt;Subscribe&lt;\/a&gt; for more!&lt;\/p&gt;';\n    }\n    return $content;\n}\n&lt;?php\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Security_and_Best_Practices\"><\/span>Security and Best Practices<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">As a responsible magician of code, security should always be your priority. Develop your plugins with safeguards to prevent malicious attacks. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Utilize WordPress security functions and follow best practices, such as escaping output and sanitizing user inputs. A well-warded plugin ensures your users&#8217; safety and a reputation unspotted. \ud83d\udd12<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Example<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When allowing users to submit data, ensure it&#8217;s sanitized to prevent cross-site scripting (XSS) attacks. For instance, if you&#8217;re creating a contact form plugin, sanitize user-submitted email addresses:<\/p>\n\n\n\n<pre><code class=\"language-php\">\n&lt;?php\nfunction sanitize_email($email) {\n    return filter_var($email, FILTER_SANITIZE_EMAIL);\n}\n&lt;?php\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">You&#8217;ve uncovered the secrets of creating WordPress plugins. \ud83c\udf0c As you polish your skills, remember that each plugin you create adds a touch of magic to the world of WordPress websites. You now have the power to shape websites according to your vision. <strong>Your journey is just starting, and the possibilities are endless.<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-verse\">Ready to continue exploring WordPress? Check out more blogs and level up your coding skills! <a href=\"https:\/\/idevelop.pro\/blog\/category\/wordpress\/\" data-type=\"post\" data-id=\"1151\" target=\"_blank\" rel=\"noreferrer noopener\">How to become WordPress developer?<\/a><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Master the art of &#8220;How to develop WordPress plugin?&#8221; Learn how create custom WordPress plugin step by step and enhance your website&#8217;s functionality.<\/p>\n","protected":false},"author":1,"featured_media":1294,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[40],"tags":[],"class_list":["post-1275","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-wordpress"],"_links":{"self":[{"href":"https:\/\/idevelop.pro\/blog\/wp-json\/wp\/v2\/posts\/1275","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idevelop.pro\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idevelop.pro\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idevelop.pro\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idevelop.pro\/blog\/wp-json\/wp\/v2\/comments?post=1275"}],"version-history":[{"count":20,"href":"https:\/\/idevelop.pro\/blog\/wp-json\/wp\/v2\/posts\/1275\/revisions"}],"predecessor-version":[{"id":1298,"href":"https:\/\/idevelop.pro\/blog\/wp-json\/wp\/v2\/posts\/1275\/revisions\/1298"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/idevelop.pro\/blog\/wp-json\/wp\/v2\/media\/1294"}],"wp:attachment":[{"href":"https:\/\/idevelop.pro\/blog\/wp-json\/wp\/v2\/media?parent=1275"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idevelop.pro\/blog\/wp-json\/wp\/v2\/categories?post=1275"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idevelop.pro\/blog\/wp-json\/wp\/v2\/tags?post=1275"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}