source/Core/Config.php
public function saveSystemConfigParameter($parameterType, $parameterName, $parameterValue)
    {
        $this->saveShopConfVar($parameterType, $parameterName, $parameterValue, $this->getBaseShopId());
    }
public function saveSystemConfigParameter($parameterType, $parameterName, $parameterValue)
    {
        $this->saveShopConfVar($parameterType, $parameterName, $parameterValue, $this->getBaseShopId());
    }
public function saveSystemConfigParameter ( $ parameterType , $ parameterName , $ parameterValue ) { $ this -> saveShopConfVar ( $ parameterType , $ parameterName , $ parameterValue , $ this -> getBaseShopId ( ) ) ; }
Save system configuration parameters, which is the same for sub-shops.

@param string $parameterType  Type
@param string $parameterName  Name
@param mixed  $parameterValue Value (can be string, integer or array)
Save system configuration parameters which is the same for sub - shops .