PHP : TAMPIL KOLOM

$conn=mysql_connect("localhost","","") or die ("Koneksi gagal");

$database="contoh";
$tabel="mahasiswa";

mysql_select_db($database,$conn) or die ("Database $database tidak dapat dibuka");
$sql=mysql_query("select * from $tabel", $conn);

print "Kolom yang ada pada tabel $tabel adalah :
";
print mysql_field_name($sql, 0) ."
";
print mysql_field_name($sql, 1) ."
";
print mysql_field_name($sql, 2) ."
";
print mysql_field_name($sql, 3) ."
";
print mysql_field_name($sql, 4) ."
";
?>