Exclude Urls by Calling the Function Hook

April 19, 2024

It is very simple to exclude any url from the cache. You can call the following function in a theme or a plugin file to exclude current page.

wpfc_exclude_current_page();

Examples

1. Excluding Posts by Age

This code adds a filter to WordPress content, executing a function that calculates the age of the post and excludes it from caching if it’s older than a specified threshold, here set to 30 days.

add_filter('the_content', 'add_post_id_before_content');

function add_post_id_before_content($content) {
    // Check if we're inside a single post and not in the admin area
    if (is_single() && !is_admin()) {
        global $post;
        $expiration_threshold_days = 30;

        // Get the post date
        $post_date = strtotime($post->post_date);
        $current_date = time();

        // Calculate the difference in days
        $days_ago = floor(($current_date - $post_date) / (60 * 60 * 24));

        // Check if the post is older than the expiration day number
        if ($days_ago > $expiration_threshold_days) {
            wpfc_exclude_current_page();
        }
    }
    
    return $content;
}