client.php

<?php
/*
Copyright © 2008, 2009 Ruslanas Balčiūnas
Email: ruslanas.com@gmail.com
Blog: http://bitly.blogspot.com/
http://bitly.googlecode.com

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/
ini_set("soap.wsdl_cache_enabled", "0");

if(!empty($_GET['url'])) {
    $url = $_GET['url'];
} else {
    $url = '';
}

if( !empty($url)) {
    $client = new SoapClient("http://ruslanas.com/bitly/bitly.wsdl");
    try {
        $short = $client->getShortened($url);
    } catch(Exception $e) {
        echo 'Exception: ' . $e->getMessage();
    }
}
?>
<form action="" method="get">
    <label for="url">URL:</label>
    <input type="text" size="40" name="url" id="url" value="<?=$url?>"/>
    <input type="submit" value="shorten"/>
    <div style="padding:1em"><?=$short?></div>
</form>