eot; foreach ($params as $key => $value) { $html .= " \n"; } $html .= <<--> eot; return $html; } /** * @param int $payType * @return aotu\PayHandler|balpal\PayHandler|huayin\PayHandler|huidao\PayHandler|null */ public static function getPayHandlerByPayType($payType) { switch ($payType) { case 2: $handler = new \common\pay\huidao\PayHandler(); break; case 4: $handler = new \common\pay\huayin\PayHandler(); break; case 5: $handler = new \common\pay\aotu\PayHandler(); break; case 6: $handler = new \common\pay\balpal\PayHandler(); break; default: $handler = null; break; } return $handler; } }