How To Remove Slug From Custom Post Type In WordPress

When you create a custom post type in WordPress, by default it adds a slug to the URL of each post. This slug can help organize your content, but it can also be a hindrance if you want to remove it or change it to something else.

Fortunately, it’s not too difficult to remove the slug from your custom URL post type in WordPress. Here’s how to do it:

1. Open your functions.php file in your theme’s folder.
2. Add the following code to the file:

Step 1. Remove Slug from the Permalink

<?php
add_filter( 'post_type_link', 'cxc_product_remove_slug', 10, 3 );
function cxc_product_remove_slug( $post_link, $post, $leavename ) {

	// product is my post type
    if ( 'product' != $post->post_type || 'publish' != $post->post_status ) {
        return $post_link;
    }

    $post_link = str_replace( '/' . $post->post_type . '/', '/', $post_link );

    return $post_link;
}
?>

This code is used to remove the slug from a custom post type in WordPress. By default, when you create a custom post type, WordPress adds a slug to the URL of each post.

Step 2

<?php
add_action( 'pre_get_posts', 'cxc_parse_request_function' );
function cxc_parse_request_function( $query ) {

    if ( ! $query->is_main_query() || 2 != count( $query->query ) || ! isset( $query->query['page'] ) ) {
        return;
    }

    if ( ! empty( $query->query['name'] ) ) {
        $query->set( 'post_type', 'product' ); // You can add multipe post type like array. ex: array( 'post', 'events', 'page'  )
    }
}
?>

This code is used to fix the 404 error that might occur after removing the slug from a custom post type in WordPress. WordPress might not be able to properly route the URL to the correct post or page. This can result in a 404 error.

The code you provided adds an action to the pre_get_posts hook in WordPress, which allows you to modify the query parameters before WordPress retrieves the posts.

The cxc_parse_request_function the function is called by the hook, and it checks to see if the query is the main query and if it has a page number in the query string.

If those conditions are met, the function sets the post type to “product”. This tells WordPress to look for posts of the “product” post type instead of trying to route the URL to a page or post with a missing slug.

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