ho provato anche questo:
codice:
  <?php
   header("Content-type: image/jpeg"); 
 
    @mysql_connect("localhost", "user", "pw") or die("Connessione fallita !");
    @mysql_select_db("prova") or die("Selezione Database fallita !");


    $query = "SELECT DatiBinari, type FROM file_binari WHERE Id = '2';";
    $select = @mysql_query($query) or die("Query fallita!");
    $result = @mysql_fetch_array($select);
    $data = $result["DatiBinari"];
    $type = $result["type"];
  //  header("Content-type: $type"); 
	echo $result;
	echo $data;
	echo $type;
   
    @mysql_close();
   ?>
che mi restituisce questo output:

"
Warning: Cannot modify header information - headers already sent by (output started at c:\programmi\apache group\apache\htdocs\prova\prova.php:1) in c:\programmi\apache group\apache\htdocs\prova\prova.php on line 2

ArrayGIF89aB÷€€€€€€€€€€€€ÀÀÀÿÿÿÿimage/gif

"