Automatic Login using Curl?

I am trying to create a script to automatically login to a website using curl and am really racking my brain. Any help would be appreciated.

curl.php

<?php
class Curl {

    public $cookieJar = "";

    // Make sure the cookies.txt file is read/write permissions
    public function __construct($cookieJarFile = '/var/www/html/cookies.txt') {
        $this->cookieJar = $cookieJarFile;
    }

    function setup() {
        $header = array();
        $header[0]  = "Accept: text/xml,application/xml,application/xhtml+xml,";
        $header[0] .= "text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5";
        $header[]   = "Cache-Control: max-age=0";
        $header[]   = "Connection: keep-alive";
        $header[]   = "Keep-Alive: 300";
        $header[]   = "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7";
        $header[]   = "Accept-Language: en-us,en;q=0.5";
        $header[]   = "Pragma: "; // browsers keep this blank.

        curl_setopt($this->curl, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows; U; Windows NT 5.2; en-US; rv:1.8.1.7) Gecko/20070914 Firefox/2.0.0.7');
        curl_setopt($this->curl, CURLOPT_HTTPHEADER, $header);
        curl_setopt($this->curl, CURLOPT_COOKIEJAR, $this->cookieJar);
        curl_setopt($this->curl, CURLOPT_COOKIEFILE, $this->cookieJar);
        curl_setopt($this->curl, CURLOPT_AUTOREFERER, true);
        curl_setopt($this->curl, CURLOPT_FOLLOWLOCATION, true);
        curl_setopt($this->curl, CURLOPT_RETURNTRANSFER, true);
    }

    function get($url) {
        $this->curl = curl_init($url);
        $this->setup();

        return $this->request();
    }

    function getAll($reg, $str) {
        preg_match_all($reg, $str, $matches);
        return $matches[1];
    }

    function postForm($url, $fields, $referer = '') {
        $this->curl = curl_init($url);
        $this->setup();
        curl_setopt($this->curl, CURLOPT_URL, $url);
        curl_setopt($this->curl, CURLOPT_POST, 1);
        curl_setopt($this->curl, CURLOPT_REFERER, $referer);
        curl_setopt($this->curl, CURLOPT_POSTFIELDS, $fields);
        return $this->request();
    }

    function getInfo($info) {
        $info = ($info == 'lasturl') ? curl_getinfo($this->curl, CURLINFO_EFFECTIVE_URL) : curl_getinfo($this->curl, $info);
        return $info;
    }

    function request() {
        return curl_exec($this->curl);
    }
}
?>

Code (markup):

login.php

<?php
include('curl.php');
$curl = new Curl();

$url = "https://myvi.net/login/?ReturnUrl=http%3a%2f%2fmyvi.net%2f";
$fields = "Username=xxxxxx&Password=xxxxxx";

// Calling URL
$referer = "http://myvi.net";

$html = $curl->postForm($url, $fields, $referer);

echo $html;
?>

Code (markup):

I of course replaced the actual username and password with "xxxxxx".

Thank you in advance

 

What is the problem ?

 

It just goes to a blank page and I cannot figure out where I am going wrong. I'm hoping that someone here can see an error in my code.

 

If you can't take 5 minutes to properly explain the problem there is no reason why anyone should spend 30 seconds offering you help.

 

The problem is that it looks like it works but the page it gets to just shows a blank page. I have all the code there and I don't see an issue with the code just the result. If I could give more detail on my problem then I wouldn't have one.

Anyone with actual input would be appreciated and those that want to answer a multiple choice question should just move on.

 

any debugging have you tried? first things i would do is put error_reporting(E_ALL) at the top of the script. Then var_dump($html) instead of echoing it. If that still yields nothing, in the postForm() function try replacing return $this->request(); with var_dump(curl_exec($this->curl));