public static function fs_url($_filters = '')
 {
     // Allow only legitimate requests
     $request_uri = $_SERVER['REQUEST_URI'];
     $request_page = 'wp-slim-view-1';
     // Are we on the Dashboard?
     if (empty($_REQUEST['page'])) {
         $request_uri = str_replace('index.php', 'admin.php', $request_uri);
     } else {
         if (array_key_exists($_REQUEST['page'], self::$screens_info)) {
             $request_page = $_REQUEST['page'];
         } else {
             return '';
         }
     }
     $filtered_url = defined('DOING_AJAX') && DOING_AJAX ? explode('?', $_SERVER["HTTP_REFERER"]) : explode('?', $request_uri);
     $filtered_url = $filtered_url[0] . '?page=' . $request_page;
     // Columns
     $filters_normalized = wp_slimstat_db::parse_filters($_filters, false);
     if (!empty($filters_normalized['columns'])) {
         foreach ($filters_normalized['columns'] as $a_key => $a_filter) {
             $filtered_url .= "&fs%5B{$a_key}%5D=" . urlencode($a_filter[0] . ' ' . $a_filter[1]);
         }
     }
     // Date ranges
     if (!empty($filters_normalized['date'])) {
         foreach ($filters_normalized['date'] as $a_key => $a_filter) {
             if (!empty($a_filter) || $a_filter === 0) {
                 $filtered_url .= "&fs%5B{$a_key}%5D=" . urlencode('equals ' . $a_filter);
             }
         }
     }
     // Misc filters
     if (!empty($filters_normalized['misc'])) {
         foreach ($filters_normalized['misc'] as $a_key => $a_filter) {
             $filtered_url .= "&fs%5B{$a_key}%5D=" . urlencode('equals ' . $a_filter);
         }
     }
     return $filtered_url;
 }
 public static function fs_url($_filters = '', $_view_url = '')
 {
     $filtered_url = !empty($_view_url) ? $_view_url : self::$view_url;
     // Backward compatibility
     if (is_array($_filters)) {
         $flat_filters = array();
         foreach ($_filters as $a_key => $a_filter_data) {
             $flat_filters[] = "{$a_key} {$a_filter_data}";
         }
         $_filters = implode('&&&', $flat_filters);
     }
     // Columns
     $filters_normalized = wp_slimstat_db::parse_filters($_filters, false);
     if (!empty($filters_normalized['columns'])) {
         foreach ($filters_normalized['columns'] as $a_key => $a_filter) {
             $filtered_url .= "&fs%5B{$a_key}%5D=" . urlencode($a_filter[0] . ' ' . $a_filter[1]);
         }
     }
     // Date ranges
     if (!empty($filters_normalized['date'])) {
         foreach ($filters_normalized['date'] as $a_key => $a_filter) {
             $filtered_url .= "&fs%5B{$a_key}%5D=" . urlencode('equals ' . $a_filter);
         }
     }
     // Misc filters
     if (!empty($filters_normalized['misc'])) {
         foreach ($filters_normalized['misc'] as $a_key => $a_filter) {
             $filtered_url .= "&fs%5B{$a_key}%5D=" . urlencode('equals ' . $a_filter);
         }
     }
     return $filtered_url;
 }