Latest Foursquare Checkin function

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Here is a solution for you:

First download this nice little class

Next, include it and “login”

<?php
require_once 'foursquare.php'; //Load the foursquare class
$foursquare = new fourSquare("username", "password"); //login

Then to get the venue’s name use:

<?php echo $foursquare->venueName; ?>

you can also get the venue’s type,venue’s icon, venue’s location on the map and user’s comment on the venue. its all documented at the link provided above.

Update:

Since FourSquare changed their API i found a much simpler solution:
login to your foursquare account and then head to http://feeds.foursquare.com/ and copy the rss feed url.
and use this:

// $numCheckins - number of checkins to get
function Display_last_checkins($numCheckins = 2){
    $feedURL = 'enter your rss feed here';
    $feedObject = simplexml_load_file($feedURL . '?count=" .$numCheckins);
    $items = $feedObject->channel;
    $checkin = $items->item;
    echo "<ul>';
    $count = 0;
    foreach ($checkin as $item) {
        if ($item->link != '') {
            echo '<li><a href="'. $item->link .'">' .
                $item->title . '</a><br/></li>';
            /* you can use 
            $item->description  - user comment
            $item->pubDate      - publish date and time (Wed, 27 Apr 11 16:40:18 +0000)
            $item->georss:point - location for map (31.613221 34.76874)

            */
            $count++;
            if ($count == $numCheckins) {break;}
        }
    }
    $echo .= '</ul>';
}