I’ve constructed a class that implements two functions, posting a status update and following an author .. This is purely for educational purposes and is intended to demonstrate the art of page scraping as well as the use of CURL for posting and retrieving data, I would of course never personally recommend using the code because I’m sure it’s some sort of violation of their TOS ;) so yeah.. don’t do it! ;) ;)

Some important things to note:

1. This will break if twitter changes their html up too much
2. This is probably a violation, so if you do use it, use it reasonably .. don’t submit a million requests per second, throttle it down =)
3. You’re using it at your own risk
4. It will post status updates as if you posted from a mobile device ( Ie. Mobile Web )

DOWNLOAD: Click to download example and class file

USAGE:

include(“tweeter.php”);

$tweeter = new tweeter();
$tweeter->login($username,$password);
$tweeter->post_tweet(“Hey, this is cool!”);
$tweeter->folllow(“oneduality”);

Contents of tweeter.php:

class tweet {
    var $user;
    var $token='';
    var $ch='';
    var $action='';

    // Logs in to twitter
    function login($user,$pass) {
        $this->user = $user;

        // Initialize CH
        if (!function_exists("curl_init")) die("This requires the CURL module, please install CURL for php.");
        $this->ch = curl_init();

        // Parse the login form
        curl_setopt($this->ch, CURLOPT_URL, "https://mobile.twitter.com/session/new");
        curl_setopt($this->ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($this->ch, CURLOPT_FAILONERROR, 1);
        curl_setopt($this->ch, CURLOPT_FOLLOWLOCATION, 1);
        curl_setopt($this->ch, CURLOPT_RETURNTRANSFER,1);
        curl_setopt($this->ch, CURLOPT_TIMEOUT, 5);
        curl_setopt($this->ch, CURLOPT_COOKIEJAR, $this->user . ".txt");
        curl_setopt($this->ch, CURLOPT_COOKIEFILE, $this->user . ".txt");
        curl_setopt($this->ch, CURLOPT_USERAGENT, "Mozilla/5.0 (iPhone; U; CPU like Mac OS X; en) AppleWebKit/420+ (KHTML, like Gecko) Version/3.0 Mobile/1A543a Safari/419.3 ");
        $page = curl_exec($this->ch);

        $page = stristr($page, "
");
        preg_match("/form action=\"(.*?)\"/", $page, $this->action);
        preg_match("/input name=\"authenticity_token\" type=\"hidden\" value=\"(.*?)\"/", $page, $this->token);

        // Login and get your home page
        $strpost = "authenticity_token=".urlencode($this->token[1])."&username=".urlencode($user)."&password=".urlencode($pass);
        curl_setopt($this->ch, CURLOPT_URL, $this->action[1]);
        curl_setopt($this->ch, CURLOPT_POSTFIELDS, $strpost);
        $page = curl_exec($this->ch);

        // Verify that we logged in ok
        preg_match("/\
(.*?)\<\/div\>/", $page, $warning);
        if (isset($warning[1])) return $warning[1];
        $page = stristr($page,"
");
        preg_match("/form action=\"(.*?)\"/", $page, $this->action);
        preg_match("/input name=\"authenticity_token\" type=\"hidden\" value=\"(.*?)\"/", $page, $this->authenticity_token);
    }

    function post_tweet($status) {

        // Set status
        $tweet['display_coordinates']='';
        $tweet['in_reply_to_status_id']='';
        $tweet['lat']='';
        $tweet['long']='';
        $tweet['place_id']='';
        $tweet['text']=$status;
        $ar = array("authenticity_token" => $this->token[1], "tweet"=>$tweet);
        $data = http_build_query($ar);
        curl_setopt($this->ch, CURLOPT_URL, $this->action[1]);
        curl_setopt($this->ch, CURLOPT_POSTFIELDS, $data);
        $page = curl_exec($this->ch);

        return true;
    }

    function follow($author_name) {

        $action = "http://mobile.twitter.com/$author_name/follow";
        $ar = array("authenticity_token" => $this->token[1], "tweet"=>$tweet, 'last_url'=>'/$author_name', );
        $data = http_build_query($ar);
        curl_setopt($this->ch, CURLOPT_URL, $action);
        curl_setopt($this->ch, CURLOPT_POSTFIELDS, $data);
        $page = curl_exec($this->ch);

        return true;
    }
}

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Well this aims to give you a quick, easy solution!

The first thing you’ll want to do is open up your configuration.php file in your editor of choice.

Look for the variable “$mosConfig_live_site”, this is no doubt configured to your current web site address! and this is what is causing your problem.  We’ll be changing it to this:

$mosConfig_live_site = “http://” . $_SERVER['HTTP_HOST'];

This will pull the site’s URL out of an environment variable on the server! This means that no matter what URL is used to get to your site, Joomla will automatically set $mosConfig_live_site to match.

This solution works in the world of Linux and Apache, if you’re running Joomla in a windows environment and this doesn’t work, I suggest going to your Joomla control panel and looking at System info -> php info … You’re trying to find a variable that contains the website name without http:// in front of it .. once you find something, adjust the code above! if you find one that has http:// in front of it, then you can further adjust the code to suit your needs.

Have fun!

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