apply_filters( ‘page_link’, string $link, int $post_id, bool $sample )

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   Noruzzaman 2 years ago

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   Customizing Permalinks for WordPress Pages Based on Categories
   Learn how to dynamically change WordPress page permalinks based on assigned categories. This tutorial will guide you through the process of creating a custom function that checks if a page belongs to a specific category (e.g., “example”) and modifies its permalink structure accordingly. You’ll understand the usage of WordPress hooks and functions like get_the_category() and add_filter() to achieve this customization.

   function wpdocs_tutorials_permalink( $permalink, $post ) {
       // Ensure we're dealing with a page
       if ( 'page' !== get_post_type( $post ) ) {
           return $permalink;
       }
   
       // Get the categories assigned to the page
       $categories = get_the_category( $post->ID );
   
       // Check if any of the categories is "example"
       foreach ( $categories as $category ) {
           if ( 'example' === $category->slug ) {
               return home_url( '/example/' . $post->post_name . '/' );
           }
       }
   
       // Return default permalink if no match
       return $permalink;
   }
   
   add_filter( 'page_link', 'wpdocs_tutorials_permalink', 10, 2 );