private function handle_add_member() {
    // Validate data
    if (empty($_POST['member_name']) || empty($_POST['email'])) {
        wp_redirect(add_query_arg('error', 'Name and email are required', wp_get_referer()));
        exit;
    }
    
    $member_obj = new SMS_Member();
    $data = array(
        'member_name' => sanitize_text_field($_POST['member_name']),
        'email' => sanitize_email($_POST['email']),
        'phone' => sanitize_text_field($_POST['phone'] ?? ''),
        'address' => sanitize_textarea_field($_POST['address'] ?? ''),
        'status' => sanitize_text_field($_POST['status'] ?? 'Active')
    );
    
    // Add initial shares if provided
    if (!empty($_POST['initial_shares'])) {
        $data['initial_shares'] = intval($_POST['initial_shares']);
    }
    
    $result = $member_obj->create_member($data);
    
    if (is_wp_error($result)) {
        $error_message = $result->get_error_message();
        wp_redirect(add_query_arg('error', urlencode($error_message), wp_get_referer()));
    } else {
        // If initial shares were provided, update them
        if (!empty($_POST['initial_shares']) && $result) {
            $shares_obj = new SMS_Shares();
            $shares_obj->update_shares($result, intval($_POST['initial_shares']));
        }
        
        wp_redirect(add_query_arg('success', 'Member added successfully', wp_get_referer()));
    }
    exit;
}<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="https://www.islamicmartbd.com/wp-sitemap-index.xsl" ?>
<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"><sitemap><loc>https://www.islamicmartbd.com/wp-sitemap-posts-post-1.xml</loc></sitemap><sitemap><loc>https://www.islamicmartbd.com/wp-sitemap-posts-page-1.xml</loc></sitemap><sitemap><loc>https://www.islamicmartbd.com/wp-sitemap-taxonomies-category-1.xml</loc></sitemap><sitemap><loc>https://www.islamicmartbd.com/wp-sitemap-users-1.xml</loc></sitemap></sitemapindex>