public function getString($varname)
    {
        $value = $this->get($varname);
        return $value === null ? null : trim($value);
    }
public function getString($varname)
    {
        $value = $this->get($varname);
        return $value === null ? null : trim($value);
    }
public function getString ( $ varname ) { $ value = $ this -> get ( $ varname ) ; return $ value === null ? null : trim ( $ value ) ; }
Gets the configuration option value as a trimmed string.

@param string $varname  The configuration option name.
@return null|string     Null if configuration option does not exist.
The configuration option value (string) otherwise.
Gets the configuration option value as a trimmed string .