$HTTP_COOKIE_VARS question

Stinger51

I know the cookies are there, as I can grab them by name, and print out their values.

But how to read their info out of the global array?

I tried this (with the idea of building a loop to get them all) :

global $HTTP_COOKIE_VARS;

if ( isset ($HTTP_COOKIE_VARS[0]) ) echo "Good cookie!";

but it sees nothing. I also tried :

if ($HTTP_COOKIE_VARS[0]) echo "Good cookie!";

Also, how do I extract the value of the cookie here?

Thanks in advance.

archangel_617b

The indeces of the global array are the names of your variables. If you have a cookie name $ishouldusesessions, then you reference it something like this:

print('$ishouldusesessions: '.$_COOKIE['ishouldusessions']);
// displays "$ishouldusesessions: true"

There 😃 That'll work for you. Arrays in PHP are often not numerically indexed.

Stinger51

Using your example, how would I increment 'ishouldusesession' so I can move on to the next cookie?

I thought the idea of having the $HTTP_COOKIE_VARS (I am still using PHP 4.0) was to be able to loop thru all the cookies that I have sent to the user?

IOW, if I send him 3 cookies, and later want to be able to retrieve the data, how can I index thru the global array? I am allowing the user in this case to set up some default parameters (which I want to store on his computer, not my server) and I am trying to read them back into my program.

Thanks again for your help.

archangel_617b

Ah, if you want to iterate through the array, you get to do [man]foreach[/man]. This is fun stuff. Lets you go through an associative array iteratively.

I do not use foreach myself so I cannot provide you a working example myself, but the docs should have sufficient material for you.

Good luck 😉

Stinger51

Yes, I hadn't thought of using foreach. So here's what I did :

foreach ($HTTP_COOKIE_VARS as $value)
{
echo "<br />value = $value";
$i++;
}

Even tho there were only two cookies, this printed out three of the (and indeed the $i var confirmed this count), the first one being something like :

value = c45c80efbb8779ee8adecd20c62ee7c52

I'm not sure, but this looks like the session id from PHPSESSID, so I presume this is the first array element of the cookie?

The other two cookies came thru just fine. Thanks.