function generate_rss_feed() {  
    // Get all post categories  
    $categories = get_categories();  

    // Create a new SimplePie object for the RSS feed  
    $feed = new SimplePie();  
    $feed->set_feed_url(home_url('/rss'));  
    $feed->set_title(get_bloginfo('name'));  
    $feed->set_link(home_url());  
    $feed->set_description(get_bloginfo('description'));  

    // Loop through each category and add posts to the feed  
    foreach ($categories as $category) {  
        // Only include published posts in the last 30 days  
        $posts = get_posts([  
            'post_type' => ['post'],  
            'post_status' => 'publish',  
            'numberposts' => 1000, // Adjust as needed  
            'category' => $category->term_id,  
            'date_query' => [  
                [  
                    'column' => 'post_date',  
                    'after' => '30 days ago'  
                ]  
            ]  
        ]);  

        // Add items to the feed  
        foreach ($posts as $post) {  
            $item = new SimplePieItem();  
            $item->set_title($post->post_title);  
            $item->set_link(get_permalink($post));  
            $item->set_content(apply_filters('the_content', $post->post_content));  
            $item->set_date(get_the_date(DATE_RSS, $post));  
            $feed->add_item($item);  
        }  
    }  

    // Output the RSS feed  
    $feed->handle_content_type();  
    exit;  
}{"id":38851,"count":0,"description":"","link":"https:\/\/theindustry.biz\/tag\/charles-warfield\/","name":"charles warfield","slug":"charles-warfield","taxonomy":"post_tag","meta":[],"_links":{"self":[{"href":"https:\/\/theindustry.biz\/wp-json\/wp\/v2\/tags\/38851","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/theindustry.biz\/wp-json\/wp\/v2\/tags"}],"about":[{"href":"https:\/\/theindustry.biz\/wp-json\/wp\/v2\/taxonomies\/post_tag"}],"wp:post_type":[{"href":"https:\/\/theindustry.biz\/wp-json\/wp\/v2\/posts?tags=38851"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}