help with mysql errors

[aquilo at hotmail.com]

I have these 3 errors and below are lines 17-19. Any suggestions what I
am forgetting?

Warning: mysql_select_db(): supplied argument is not a valid MySQL-Link
resource in /home/---/public_html/----/register2.php on line 17

Warning: mysql_query(): supplied argument is not a valid MySQL-Link
resource in /home/---/public_html/----/register2.php on line 18

Warning: mysql_close(): supplied argument is not a valid MySQL-Link
resource in /home/---/public_html/----/register2.php on line 19
16 $linkID = @mysql_connect("localhost", $username, $password);
17 mysql_select_db($dbname, $linkID);
18 $result = mysql_query("INSERT INTO alumni
(rank,firstname,lastname,email,passw,comments) VALUES
('$rank','$firstname','$lastname','$email','$passw ','$textarea')", $linkID);
19 mysql_close($linkID);

[Aggro]

aquilo at hotmail.com wrote:

I have these 3 errors and below are lines 17-19. Any suggestions what I
am forgetting? 16 $linkID = @mysql_connect("localhost", $username, $password);
17 mysql_select_db($dbname, $linkID);

You don't check for errors. MY guess would be that you fail to connect
to server and the $linkID has null value.

[Aggro]

aquilo at hotmail.com wrote:

I have these 3 errors and below are lines 17-19. Any suggestions what I
am forgetting? 16 $linkID = @mysql_connect("localhost", $username, $password);
17 mysql_select_db($dbname, $linkID);

You don't check for errors. MY guess would be that you fail to connect
to server and the $linkID has null value.

[Aggro]

aquilo at hotmail.com wrote:

I have these 3 errors and below are lines 17-19. Any suggestions what I
am forgetting? 16 $linkID = @mysql_connect("localhost", $username, $password);
17 mysql_select_db($dbname, $linkID);

You don't check for errors. MY guess would be that you fail to connect
to server and the $linkID has null value.