protected function extractShaSign(array $parameters)
    {
        if (!array_key_exists(self::SHASIGN_FIELD, $parameters) || $parameters[self::SHASIGN_FIELD] == '') {
            throw new InvalidArgumentException('SHASIGN parameter not present in parameters.');
        }
        return $parameters[self::SHASIGN_FIELD];
    }
protected function extractShaSign(array $parameters)
    {
        if (!array_key_exists(self::SHASIGN_FIELD, $parameters) || $parameters[self::SHASIGN_FIELD] == '') {
            throw new InvalidArgumentException('SHASIGN parameter not present in parameters.');
        }
        return $parameters[self::SHASIGN_FIELD];
    }
protected function extractShaSign ( array $ parameters ) { if ( ! array_key_exists ( self :: SHASIGN_FIELD , $ parameters ) || $ parameters [ self :: SHASIGN_FIELD ] == '' ) { throw new InvalidArgumentException ( 'SHASIGN parameter not present in parameters.' ) ; } return $ parameters [ self :: SHASIGN_FIELD ] ; }
Set Ogone SHA sign
@param array $parameters
@throws \InvalidArgumentException
Set Ogone SHA sign