On Tue, Mar 25, 2008 at 9:11 PM, Mark Weaver <mdw1982@xxxxxxxxxxx> wrote:
> Hi all,
[snip!]
>
> Cookie Test Page
> ==========================
> if (isset($_COOKIE["cookiename"])){
> list($first,$second,$third) = explode('|',$_COOKIE["cookiename"]);
> echo "<p>I found your cookie</p>\n";
> echo "<p>The following Values were Contained in the cookie:<BR>
> Username: $first<BR>
> Password: $second<BR>
> Type : $third</p>\n";
> }
> else{
> echo "<p>I wasn't able to find your cookie.</p>\n";
> }
>
> Now, I've constructed a cookie_test.php page to check things out and the
> strange behavior I'm seeing is, upon first execution I get the "else"
> block, but if I hit the browser's reload button I get the "if" block. At
> first I thought the cookie wasn't being read at all because of weird
> characters, but then upon reloading the page and seeing the "if" block
> being displayed I'm thoroughly confused. It's gotta something simple I'm
> missing.
Is this block of code executed immediately after the cookie is
set? Sometimes PHP works too fast for its own good and the client
doesn't even realize it has a cookie yet. Try setting it with one
page and either sleep()'ing for a bit or forcing a link-click or page
refresh before checking for the cookie.
Conversely, $_SESSION data is much quicker, since the PHPSESSID
cookie is sent as soon as you initialize the session
(session_start()), and you can then immediately access the variables.
Proof-of-concept:
<?php
// session-test.php
session_start();
$_SESSION['test'] = "This is only a test.";
echo $_SESSION['test']."<br />\n";
?>
<?php
// cookie-test.php
setcookie("cookiename","This is a cookie test.",time()+86400);
echo $_COOKIE['cookiename']."<br />\n";
?>
--
</Daniel P. Brown>
Forensic Services, Senior Unix Engineer
1+ (570-) 362-0283
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