$t = new stwitter();
$t->last = 1;
$t->get_twitter_msg();
 
class stwitter {
 
	public $page;
	public $last;
	public $msg;

// Returns the stored message
function get_twitter_msg() {
	//get the next message from your twitter rss feed
	$msg = $this->update_twitter_message();
	//check to see if it is an @ reply - I didn't want to display
	//@ replies so if you do, remove this check.
	if($msg[0] == '@'){
		unset($msg);
		$this->get_twitter_msg();
	}
	//This is the bit of logic that changes things into appropriate links
	//first we 'explode' the message by the spaces, this puts each word
	//or group of characters into an array, see php.net/explode
	$msg_chunks = explode(" ", $msg);
	//now I parse through that array and examine each of the 'words'
	foreach($msg_chunks as $chunk){
		//is this a twitter username? if it starts with '@'
		//and is longer than 1 character I make it link to that
		//user's twitter page
		if($chunk[0] == '@' && strlen($chunk) > 1){
			$out_msg .= ' <a href="http://twitter.com/' . substr($chunk, 1) . '">' . $chunk . '</a> ';
		}
		//is this a link? Does it contain 'http://' in the string?
		//if so, I make it into an actual clickable link to that page
		elseif(strstr($chunk, 'http://')){
			$out_msg .= ' <a href="' . $chunk . '">' . $chunk . '</a> ';
		}
		//if you make it this far you're probably just a 'word'
		else{
				$out_msg .= " " . $chunk;
		}
	}
	//'print' out the tweet
	echo $out_msg;
	//unset all the variables, this is needed due to the recursion of this function
	//and it's good practice, don't leave those remnants behind
	unset($out_msg);
	unset($this->page);
	unset($this->last);
}

// Updates the message cache
function update_twitter_message() {
	// Update cache
	$twitterId = 'theunlivedlife'; //this is where your Twitter ID should go
	//make sure that there is a twitter id that is not 'null'
	if ($twitterId != '') {
		//$url is the link to the user's public rss feed
		$url = 'http://twitter.com/statuses/user_timeline/'.$twitterId.'.rss';
		//fetch the next tweet from this rss feed
		$title = $this->get_message_from_url($url);
		//if it finds a title in the feed
		if ($title != '') {
			//chop off the username from the beginning of the string
			$msg = $this->extract_message_from_twitter_title($title);
			return $msg;
		}
	}
}

// Message comes in the format 'Name : Message'. This removes the 'Name : ' part
function extract_message_from_twitter_title($title) {
	$msg = substr($title, strpos($title, ':') + 2);
	return $msg;
}

// Gets the RSS feed and handles its business
function get_message_from_url($url, $tag = 'title', $item = 'item') {
	$msg = '';
 
	if(!isset($this->page)){
		$this->get_page($url);
	}
 
	if ($this->page == '') {
		return '';
	}
	//behind the scenes is an xml-like data set, this sets what tags to be
	//looking for when parsing through the data on the feed
	$itemTag = "<$item>";
	$startTag = "<$tag>";
	$endTag = "</$tag>";
 
	//this was a hack, changed from Simple Twitter, since I'm iterating
	//through the feed to find the latest non @ reply I'm doing things
	//a bit differently, see below - will be changed in future
	$inItem = true;
 
	//this was used before, but then I found a different way around
	//will change in the future
	$offset = $this->last;
	//calls a function that can find the nth position of a string in a string
	$titlePos = $this->strposOffset($itemTag, $this->page, $offset);
	//truncate the page data to 6 characters after the found string start
	//this makes sure that next time we iterate through, if this was an
	//@ reply, that we skip over it, because the tag we searched for is gone
	$this->page = substr($this->page, $titlePos + 6);
	//break up the page into lines in an array
	$lines = explode("\n",$this->page);
	//parse through the array to find the actual tweet
	foreach ($lines as $s) {
			$s = rtrim($s);
			//not needed anymore, will be removed in next revision
			if (strpos($s, $itemTag)) {
				$inItem = true;
			}
			//condition unnecessary, will be removed in next revision
			if ($inItem) {
				$msg .= $s;
			}
			//did we locate the start and end of the tag in question?
			//if so, strip out the tweet and save it to $msg
			if ($inItem && strpos($s, $endTag)) {
				$msg = substr_replace($msg, '', strpos($msg, $endTag));
				$msg = substr($msg, strpos($msg, $startTag) + strlen($startTag));
				break; //hop out of the for each since we're done
			}
 
	}
	//return the tweet to the calling function
	return $msg;
}

//Using the PHP Client URL functions, fetch the rss feed for a particular
//twitter user account
function get_page($url){
	$this->page = '';
	if (function_exists('curl_init')) {
		$curl_session = curl_init($url);
		curl_setopt($curl_session, CURLOPT_RETURNTRANSFER, true);
		curl_setopt($curl_session, CURLOPT_CONNECTTIMEOUT, 4);
		curl_setopt($curl_session, CURLOPT_TIMEOUT, 8);
		$this->page = curl_exec($curl_session);
		curl_close($curl_session);
	}
}