Cookie question

pinehead18

Ok, just a basic question for understanding on how the cookie works.

When I set the cookie on one page. And that page will display the vaule of the cookie when i ask for it.

And i go to another page i code and lets say the cookie varuable is $cookie and $cookie = "wee";

The page the cookie is set on will echo wee.

But, on another page i code i have it try to echo it the same way. and it wont.

Any ideas?

sfhc

Hello,

I assume you are not just doing $cookie="foo"

How to set and get a cookie:


// set cookie
$value="foo";
setcookie ("TestCookie", $value,time()+3600); 

// get cookie
echo $_COOKIE["TestCookie"];

Hope this helps.

*Note: using this code on the same page wont work, the cookie value is not available until the next page loads.

pinehead18

I get $af from http://www.domain.com?af=whatever

still nothing..????

<?php

$value=$af;
setcookie ("TestCookie", $value,time()+3600, ".domain.com", 1);

echo $_COOKIE["TestCookie"];

sfhc

If you are using: $af from http://www.domain.com?af=whatever

Do this:

in file1.php

<?php
   setcookie ("TestCookie", $_GET[af],time()+3600, ".domain.com", 1); 
?>

in file2.php do this:

<?php
  echo $_COOKIE["TestCookie"]; 
?>

noodles

cookies don't always work in PHP I've found, unless there is a time a place to set them?

Is it true that the code has to appear before any HTML tags? I don't think this is true. I have a cookie working fine on one site, copied the code to another site and the cookie will not create on this new site!!

Here is what I am doing. It's a bit involved.

$date = date("Ymd");

if(!isset($custid))
{
mysql_query("INSERT INTO $customers_table (new, signupdate) VALUES(1, '$date')");

$cid = mysql_query("SELECT MAX(id) AS maxid FROM $customers_table");
$cid2 = mysql_fetch_array($cid);
$maxid = $cid2[maxid];

}

if(isset($maxid))
{
setcookie("custid", $maxid ,time()+14400,"/",".skin-perfect.com",0);
}

END OF CODE.

If I display $custid, it has no value! I should be able to display this variable anywhere on the site after this code has executed.

winterbeef

Hello,

There are restrictions aon where you can set cookies via PHP.

you must call setcookie() before you send any non-header output to the browser. In other words, before any echo or print.

Unless, you use the output buffering functions: OB functions

Also, check your PHP install versus the register_globals directive:
Register_globals.

Also, dumping the arrays to the screen always helps:

<?php
echo '<pre>';
var_dump($_COOKIE);
echo '</pre>';
?>

If $_COOKIE doesn't contain anything, you might be using an older version of PHP -- try $HTTP_COOKIE_VARS in its place.

HTH