New Class to use with CakePHP or by it self

If you use service like Twitter where you only get a limited number of characters to post or if you are just sick of dealing with unruly long urls you might be familliar with url shortening services such as

I personally like them because of they offer a nice API and statistics all for free. It is a pretty quick service too. You can generate hundreds of URLs in just a few seconds. All you have to do is register and you get a username and API key which you will need in the following section.

Here is the code … As you can see I only implemented the shorten for now but I will probably add some of the other stuff later. For some reason WP won’t let me post curl_exec( so be sure to remove the extra character.

class bitly {
	 * A PHP class to utilize the bitly API
	 * through the Bitly API. Handles:
	 * - Shorten
	 * Requires PHP5, CURL, JSON and a Bitly account
	 * Bitly API documentation:
	protected $appkey;
	protected $login;
	protected $version;
	* Contruct the Bitly Class
    * @param string, your Bitly account key
    * @param string, your Bitly account login
	public function __construct($login, $appkey, $version='2.0.1') {
		$this->login = $login;
		$this->appkey = $appkey;
		$this->version = $version;
	* Retrieve a shortened URL
    * @param string, url to shorten
    * @param string, version of Bitly to use
	public function shorten($url) {
		//create the URL
		$api_url = ''.$this->version.'&longUrl='.urlencode($url).'&format=xml&login='.$this->login.'&apiKey='.$this->appkey;
		//call the API
		$curl = curl_init();
		curl_setopt($curl, CURLOPT_URL, $api_url);
		curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
		$response = curl_ex_ec($curl);
		//parse the XML response and return the url
		$xml_object = new SimpleXMLElement($response);
		return $xml_object->results->nodeKeyVal->shortUrl;

If you want to use this in CakePHP … you will want to do something like this.
Put this line before the class … I actually use this in a helper since this is a view level class

App::import('Vendor','Bitly', array("file" => "bitly/bitly.class.php"));

Now you can just invoke it in one of your functions somewhere with two simple calls!

$bitly = new Bitly('username', 'your_API_key_here');
$short_url = $bitly->shorten($long_url);

Simple as that … oh and one more thing. Be sure to have CURL installed else this won’t work.