$xml_output = '<?xml version="1.0" encoding="iso-8859-9"?> '; 						
		$xml_output .= "\n<SQLSERVER>\n";
		$xml_output .= "\t\t<Server>". $MsSqlServer ."</Server>\n";
		$xml_output .= "\t\t<Database>". $MsSqlDatabase ."</Database>\n";  
		$xml_output .= "\t\t<Kullanici>". $MsSqlKullanici ."</Kullanici>\n";
		$xml_output .= "\t\t<Sifre>". $MsSqlSifre ."</Sifre>\n"; 
		$xml_output .= "</SQLSERVER>\n";
		$yaz=fopen('conf.xml', "w"); 

		fwrite($yaz,$xml_output);   
	   fclose($yaz); 

<?xml version="1.0" encoding="iso-8859-9"?> 
<SQLSERVER>
		<Server>ServerAdı</Server>
		<Database>DatabaseAdi</Database>
		<Kullanici>DatabaseKullanici</Kullanici>
		<Sifre>DatabaseSifre</Sifre>
</SQLSERVER>