cookies troubles

[kikidonc]

Hi all,

Today, I try to deal with cookies. I got a login form allowing people to access (or not) a "restricted access area". I'd like to send a cookie of which the value will depends on the result of the login... In the restricted access area, I want to check the cookies's value (for each page that will be loaded) and if people don't have the right cookie value, they are redirected to another area...

In sum, my trouble is that I can't have my cookie persistent. I do:
$cookie = "Name"; //cookie name
$granted = "yes"; //granted val
$refused = "no"; //denied val
$life = "3243600"; //in seconds???
setcookie($cookie,$granted,time()+$life);
header(Location: my_page.php);

Then, in my_page.php
$mycookie=$HTTP_COKIE_VARS["$cookie"];
If i do a echo "$mycookie"; right after, I get its value back. But if i do it in the begining of an other page, I get an error message (Warning: Undefined index: "cookie_name" in c:\program files\apache group\apache\htdocs\secret\cookie.php on line 2). The cookie should however live for 3 days (cf $life).

If anybody could help me.
Thanks a lot,
Fred.

[Anon]

IF they are authorised by matching a username and password from a mysql database, set a cookie like this :-

$sql = "SELECT id
FROM $table_name
WHERE username = \"$username\" AND password = password(\"$password\")
";

$result = mysql_query($sql)
or die ("Can't execute query.");

while ($row = mysql_fetch_array($result)) {
$id = $row['id'];

$num = mysql_numrows($result);

if ($num != 0) {

$cookie_name = "auth";
$cookie_value = "ok";
$cookie_expire = "";
$cookie_domain = "";

etc, etc

Then at the top of every protected page, enter this sort of code :-

if ($auth == "ok") {

Code to display, or variables set and then use the normal HTML code at the end.

} else {
header ( "Location:http://yourlogin page");
EXIT;
}

It works for me. Youmay want to encrpy the cookie names and values tho for more security.

Laterz
[e-mail]

[kikidonc]

It's more or less what I have done but...
I'm gonna have a new try.

Thank you for your help,
Greetings,
Fred.