To change the slug in WordPress, you can use the wp_update_post function along with the wp_insert_post function. Here's how you can do it: <?php // First, get the post ID based on the post URL $post_url = 'https://www.example.com/mypost/'; $post_id = url_to_postid( $post_url ); // If post ID is found if ( $post_id ) { // Get the post object $post = get_post( $post_id ); // Update the post's slug to 'yourpost' $post->post_name = 'yourpost'; // Update the post in the database wp_update_post( $post ); echo "Slug updated successfully!"; } else { echo "Post not found!"; } ?> Hopefully this will fix your problem. Happy Coding :)