$apri=fopen('count.txt','r+');
fwrite($apri,fread($apri,(filesize('count.txt')))+ 1);
$count=fread($apri,(filesize('count.txt')));
$inizio=filesize('count.txt')-2;
$numero=substr($count,$inizio,1);




while($riga = mysql_fetch_assoc($query))
{
$id_user = $riga['id_user'];
}
$id_cartella = substr($id_user, -1, 1);
$cartella = "fotos/".$id_cartella ;
$image_src ="fotos/" . $id_cartella . "fotos/"."1" . ".jpg";
echo "<img src=\"$image_src\">";
?>

ancora no