*** odbc and php big problem ***

this is my code:


$conn=odbc_connect("DRIVER={Microsoft Access Driver (*.mdb)}; DBQ=" . str_replace("/", "\\", $_SERVER["DOCUMENT_ROOT"]) . "\a.mdb",'','');
if (!$conn)
  {exit("Connection Failed: " . $conn);}
$sql="SELECT * FROM customers";
$rs=odbc_exec($conn,$sql);
if (!$rs)
  {exit("Error in SQL");}
while (odbc_fetch_row($rs))
{
  print_r(odbc_result($rs,"CompanyName"));
}
odbc_close($conn);

this is what I get from that:

! ?)| ?)| ?)|

WHYYYYYYYY??? in the base is only write in “Test inc” in text type