code: public function add()
      {
          if (!headers_sent()) {
              // Set the cookie via PHP headers
              $added = setcookie(
                  $this->name,
                  $this->value,
                  round(time() + 60 * 60 * 24 * $this->lifetime),
                  $this->path,
                  $this->host
              );
          } else {
              //Headers have been sent use JavaScript to set the cookie
              echo "<script>";
              echo '
                function setCookie(c_name,value,expiredays){
                  var exdate=new Date();
                  exdate.setDate(exdate.getDate()+expiredays);
                  document.cookie=c_name+ "=" +escape(value)+((expiredays==null) ? "" : "; expires="+exdate.toUTCString()) + "; domain="+ escape("' . $this->host . '") + "; path=" + escape("' . $this->path . '");
                }
              ';
              echo "setCookie('{$this->name}','{$this->value}',{$this->lifetime})";
              echo "</script>";
              $added = true;
          }
  
          return $added;
      }
docs: Sends the cookie to the browser
  
  @return bool