curl is not collecting all the cookies from external site - php

Question

for some reason , its not collecting all the cookies, its not collecting the password hash or the member id , im not sure why its not setting those since its getting the others, am i doing somthing wrong with my coding, this is my first time using curl
this is the information in the cookie.txt file
<?php
//init curl
function curl_file_get_contents($url){
$username = 'user#hotmail.com';
$password = 'mypass';
$loginUrl = 'http://forums.zybez.net/index.php?app=curseauth&module=global&section=login';
//init curl
$ch = curl_init();
curl_setopt($ch, CURLOPT_COOKIEJAR, 'cookie.txt');
curl_setopt($curl, CURLOPT_COOKIEFILE, 'cookie.txt');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_VERBOSE, true);
curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
curl_setopt($ch, CURLOPT_URL, $loginUrl);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, 'user=' . $username . '&pass=' . $password);
$store = curl_exec($ch);
curl_setopt($ch, CURLOPT_REFERER, 'http://forums.zybez.net/runescape-2007-prices/282-law+rune');
$content = curl_exec($ch);
curl_close($ch);
file_put_contents('~/download.zip', $content);
$curl = curl_init();
curl_setopt($curl, CURLOPT_COOKIEJAR, 'cookie.txt');
curl_setopt($curl, CURLOPT_COOKIEFILE, 'cookie.txt');
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 30);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
curl_setopt($curl, CURLOPT_VERBOSE, true);
curl_setopt($curl, CURLOPT_REFERER, $loginUrl);
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 5);
curl_setopt($curl, CURLOPT_FAILONERROR, TRUE);
$contents = curl_exec($curl);
return $contents;
curl_close($curl);
}
function get_input_tags($html){
$post_data = array();
// a new dom object
$dom = new DomDocument;
//load the html into the object
$dom->loadHTML($html);
//discard white space
$dom->preserveWhiteSpace = false;
//all input tags as a list
$input_tags = $dom->getElementsByTagName('input');
//get all rows from the table
for ($i = 0; $i < $input_tags->length; $i++) {
if (is_object($input_tags->item($i))) {
$name = $value = '';
$name_o = $input_tags->item($i)->attributes->getNamedItem('name');
if (is_object($name_o)) {
$name = $name_o->value;
$value_o = $input_tags->item($i)->attributes->getNamedItem('value');
if (is_object($value_o)) {
$value = $input_tags->item($i)->attributes->getNamedItem('value')->value;
}
$post_data[$name] = $value;
}
}
}
return $post_data;
}
/*
Usage
*/
error_reporting(~E_WARNING);
function getauth(){
$html = curl_file_get_contents("http://forums.zybez.net/runescape-2007-prices/282-law+rune");
echo "<pre>";
$auth1 = (get_input_tags($html));
$auth = $auth1["auth"];
print_r($auth1);
}
getauth();
?>