Creating a Custom Post Type Using Code

To create a custom post type, you'll use the register_post_type() function in WordPress. Here's an example:

Step 1: Add the Code

1. Open your theme's functions.php file or create a custom plugin.
2. Add the following code

function create_books_post_type() {
    $labels = array(
        'name'               => _x('Books', 'post type general name'),
        'singular_name'      => _x('Book', 'post type singular name'),
        'menu_name'          => __('Books'),
        'name_admin_bar'     => __('Book'),
        'add_new'            => __('Add New'),
        'add_new_item'       => __('Add New Book'),
        'edit_item'          => __('Edit Book'),
        'new_item'           => __('New Book'),
        'view_item'          => __('View Book'),
        'all_items'          => __('All Books'),
        'search_items'       => __('Search Books'),
        'not_found'          => __('No Books found.'),
        'not_found_in_trash' => __('No Books found in Trash.'),
    );

    $args = array(
        'labels'             => $labels,
        'public'             => true,
        'publicly_queryable' => true,
        'show_ui'            => true,
        'show_in_menu'       => true,
        'query_var'          => true,
        'rewrite'            => array('slug' => 'books'),
        'capability_type'    => 'post',
        'has_archive'        => true,
        'hierarchical'       => false,
        'menu_position'      => null,
        'supports'           => array('title', 'editor', 'thumbnail', 'excerpt', 'comments'),
    );

    register_post_type('book', $args);
}
add_action('init', 'create_books_post_type');

Step 2: Save and Test

1. Save the file and visit your WordPress admin panel.
2. You should see a new "Books" menu item.
3. Create a new book post and publish it.

Displaying Custom Post Types

Creating Custom Templates

To display custom post types on the front end, create these template files in your theme:

1. Single Template

• File: single-book.php
• Code Example:

<?php get_header(); ?>

    <?php while (have_posts()) : the_post(); ?>
        

        

    <?php endwhile; ?>

<?php get_footer(); ?>

2. Archive Template

• File: archive-book.php
• Code Example:

<?php get_header(); ?>

    
Books Archive
    <?php if (have_posts()) : while (have_posts()) : the_post(); ?>
        

    <?php endwhile; endif; ?>

<?php get_footer(); ?>

Troubleshooting Common Issues

1. Permalinks Not Working:

Go to Settings > Permalinks and click "Save Changes" to flush rewrite rules.

2. Custom Post Type Not Appearing:

Ensure public is set to true in the $args array