I'm using PHP 5.2.17 to get a remote page, the HTTP requests contains some cookie values but cookies are not delivered to the destination page.

```
$url = 'http://somesite.com/';
$opts = array(
    'http' => array
        (
        'header' => array("Cookie: field1=value1; field2=value2\r\n")
    )
);
$context = stream_context_create($opts);
echo file_get_contents($url, false, $context);

```

Can you help me find the problem?
Note: I can't use curl.
Thanks.