public static function get_instance() { if (null == self::$instance) { self::$instance = new self(); } return self::$instance; }
public function pdfout_order() { if (isset($_REQUEST['action']) && 'pdfout_order' == $_REQUEST['action']) { $this->page = ''; $wc2_print = WC2_PRINT::get_instance(); $wc2_print->print_process(); die; } do_action('wc2_action_admin_order_pdfout'); }