public function getDigestHash($realm, $username)
    {
        return isset($this->users[$realm.':'.$username]) ? $this->users[$realm.':'.$username] : false;
    }
public function getDigestHash($realm, $username)
    {
        return isset($this->users[$realm.':'.$username]) ? $this->users[$realm.':'.$username] : false;
    }
public function getDigestHash ( $ realm , $ username ) { return isset ( $ this -> users [ $ realm . ':' . $ username ] ) ? $ this -> users [ $ realm . ':' . $ username ] : false ; }
Returns a users' information.

@param string $realm
@param string $username

@return string
Returns a users information .