Description:
------------
---
From manual page: http://www.php.net/function.setcookie
---

The in_array($cookieName, $_COOKIE) always returns false even if the $cookieName exists in the $_COOKIE array

Test script:
---------------
Note: 
When checking if a cookie exist, the in_array() does not work on the $_COOKIE array, you should isset() to check if the cookie exists.

<?php
/**
 * part 1, setting cookie
 */
$name = 'testCookie';
$value = 'testValue';
$expires = time() + (60 * 60 * 24 * 365);
$path = '/';

setcookie($name, $value, $expires, $path);


/**
 * part 2, retrieving cookie
 */
var_dump($_COOKIE);
// output: array(1) { ["testCookie"] => string(9) "testValue" }

var_dump(isset($_COOKIE[$name]));
// output: bool(true)

var_dump(in_array($name, $_COOKIE)); // does not work as aspected !!!
// ouput: bool(false)

echo $_COOKIE[$name];
// output: testValue
?>

Expected result:
----------------
return true on the in_array($cookieName, $_COOKIE) if the $cookieName exists in the $_COOKIE array