public function email($sEmail = null)
    {
        if (null === $sEmail) {
            return $this->getEmail();
        }

        return $this->setEmail($sEmail);
    }
public function email($sEmail = null)
    {
        if (null === $sEmail) {
            return $this->getEmail();
        }

        return $this->setEmail($sEmail);
    }
public function email ( $ sEmail = null ) { if ( null === $ sEmail ) { return $ this -> getEmail ( ) ; } return $ this -> setEmail ( $ sEmail ) ; }
Get or set the address email to be used.

@param string $sEmail
@return number|\forxer\Gravatar\Gravatar
Get or set the address email to be used .