Undefined Index Errors.

[Affectless]

Hi, I have just gotten back into PHP and I am having a simple error. The reason why I call it simple is because I have seen it answered on google already but they all use If statements to fix it. Heres the errors I get

Notice: Undefined index: id in C:\xampp\htdocs\MemberSystem\config.php on line 7

Notice: Undefined index: password in C:\xampp\htdocs\MemberSystem\config.php on line 7

Now, in my config....

<?php
@session_start(); //allows session

$conn = mysql_connect("localhost","haha",""); //not my actual connectionsl0l 
mysql_select_db("haha2") or die(mysql_error()); 

$logged = MYSQL_QUERY("SELECT * FROM `members` WHERE `id` = '$_SESSION[id]' AND `password` = '$_SESSION[password]'"); 
$logged = mysql_fetch_array($logged); 

?>

As you can see on line 7 is where all the problems happen, I fixed the last error by just adding a bracket on one of them and it removed an undefined index error, but I can't seem to fix this one... Please help.

[g1smd]

You should be checking those server variables have actually been set waaaay before you attempt to use them.

[swa66]

Also check what's in the variables, anything coming from the browser should never be handed to a database without sanitizing it.

Ref: [xkcd.com...]