Using WordPress ‘get_the_post_type_description’ PHP filter

The get_the_post_type_description WordPress PHP filter allows you to modify the description for a post type archive.

Usage

add_filter('get_the_post_type_description', 'your_custom_function', 10, 2);

function your_custom_function($description, $post_type_obj) {
    // your custom code here
    return $description;
}

Parameters

$description (string) – The post type description.
$post_type_obj (WP_Post_Type) – The post type object.

More information

See WordPress Developer Resources: get_the_post_type_description

Examples

Change description for a specific post type

Update the description for a custom post type called ‘product’.

add_filter('get_the_post_type_description', 'change_product_description', 10, 2);

function change_product_description($description, $post_type_obj) {
    if ('product' === $post_type_obj->name) {
        $description = 'This is an updated description for the product post type.';
    }
    return $description;
}

Add a prefix to all post type descriptions

Add a prefix to the description for all post type archives.

add_filter('get_the_post_type_description', 'add_description_prefix', 10, 2);

function add_description_prefix($description, $post_type_obj) {
    $prefix = 'Archive: ';
    return $prefix . $description;
}

Remove post type descriptions

Remove the description for all post type archives.

add_filter('get_the_post_type_description', 'remove_post_type_descriptions', 10, 2);

function remove_post_type_descriptions($description, $post_type_obj) {
    return '';
}

Append custom text to post type descriptions

Add custom text to the end of the description for all post type archives.

add_filter('get_the_post_type_description', 'append_custom_text', 10, 2);

function append_custom_text($description, $post_type_obj) {
    $custom_text = ' Browse our collection.';
    return $description . $custom_text;
}

Modify post type description based on user role

Change the description for a custom post type called ‘event’ based on the user’s role.

add_filter('get_the_post_type_description', 'change_event_description_for_users', 10, 2);

function change_event_description_for_users($description, $post_type_obj) {
    if ('event' === $post_type_obj->name) {
        $user = wp_get_current_user();
        if (in_array('administrator', $user->roles)) {
            $description = 'Welcome, admin! This is the event post type.';
        } else {
            $description = 'Welcome, user! This is the event post type.';
        }
    }
    return $description;
}