public function getMerchantOrderParamName($orderIndex = 0, $paramIndex = 0)
    {
        $orderParam = $this->getMerchantOrderParams($orderIndex);
        return array_key_exists('name', $orderParam[$paramIndex]) ? $orderParam[$paramIndex]['name'] : null;
    }
public function getMerchantOrderParamName($orderIndex = 0, $paramIndex = 0)
    {
        $orderParam = $this->getMerchantOrderParams($orderIndex);
        return array_key_exists('name', $orderParam[$paramIndex]) ? $orderParam[$paramIndex]['name'] : null;
    }
public function getMerchantOrderParamName ( $ orderIndex = 0 , $ paramIndex = 0 ) { $ orderParam = $ this -> getMerchantOrderParams ( $ orderIndex ) ; return array_key_exists ( 'name' , $ orderParam [ $ paramIndex ] ) ? $ orderParam [ $ paramIndex ] [ 'name' ] : null ; }
Name of additional merchant parameter

@param int $orderIndex
@param int $paramIndex
@return mixed|null
Name of additional merchant parameter