Cookie Detection

[Anon]

Is it possible using PHP that I could detect if my visitors browser will accept cookies and then respond accordingly.

Any samples or pointers much appreciated

[Anon]

have a splash page or something which supposedly tries to set a cookie. Then this page will redirect the users to the actual page where cookies are used. If the next page finds the cookie (set by the previous page), then cookies are working. If not, you can complain to the users or provide an alternate.

e.g.

page1.php

...code...
setcookie("supportcookies", "yes", time()+300);

... print link to next page...

...rest of code...

page2.php

if($supportcookies) {
print "yay, you have cookies";
... rest of code ...
}
else {
print "sorry, can't visit site";
... or provide alternate code w/out cookies...
}

hope this helps,
-sridhar

[Anon]

Set a cookie and then send a redirect to the browser that sends the user to a special page, or a page with a special query string... then on that resulting page, if you don't have the cookie, you know that for whatever reason the browser is not using cookies. This is how PHPLIB, http://phplib.netuse.de/, handles cookie-get sessions.

[Anon]

Only problem to the splash page idea is that search engines will not accept any page that contains a meta refresh or hread() redirect....

Unfortunatly I havent a clue how else todoit.

What I do is ise sesssions with --enable-trans-sid turned on, then it dont matter. I just make my code compatible for get/cookie's ...

session_start();

if (!isset($SessionID))
{
$SessionID = time();
session_register("SessionID");
}

more info on sessions at

www.php.net/manual/function.session-start.php

Chris Lee

[Anon]

Thanks for the advice

It pointed me in the right direction

Mike