Would you like to display your recent tweets? This PHP class will help you get this job done. This class uses the JSON format.

twitter.class.inc.php

<?php

class RecentTweets{
	private $username;
	const cache = '/cache/';

	public function __construct($username){
		$this->username = $username;
	}

	/* The get method returns an array of tweet objects */

	public function get(){

		$cache = $_SERVER['DOCUMENT_ROOT'] . self::cache . $this->username . '-twitter-cache';
		$tweets = array();

		if(file_exists($cache) && time() - filemtime($cache) < 3*60*60){

			// Use the cache if it exists and is less than three hours old
			$tweets = unserialize(file_get_contents($cache));
		}
		else{

			// Otherwise rebuild it
			$tweets = json_decode($this->fetch_feed());
			file_put_contents($cache,serialize($tweets));
		}

		if(!$tweets){
			$tweets = array();
		}

		return $tweets;
	}

	/* The generate method takes an array of tweets and build the markup */

	public function generate($limit=10, $className = 'tweets'){

		echo '<div id="'.$className.'">';

		// Limiting the number of shown tweets
		$tweets = array_slice($this->get(),0,$limit);

		foreach($tweets as $t){

			$id			= $t->id_str;
			$text		= self::formatTweet($t->text);
			$time		= self::relativeTime($t->created_at);
			$username	= $t->user->screen_name;
			$retweets	= $t->retweet_count;

			?>

				<blockquote>
				<p><?php echo $text ?></p>
				<div class="info">
					<?php if($retweets > 0):?>
						<span class="retweet" title="Retweet Count"><?php echo $retweets ?> retweets</span>
					<?php endif;?>

					<a href="http://twitter.com/<?php echo $username,'/status/',$id?>" class="date" target="_blank" title="Shared <?php echo $time?>">
                   	<br /><small><?php echo $time?></small></a>
				</div>
				</blockquote>

            <?php
		}
		echo "</div>";
	}

	/* Helper methods and static functions */

	private function fetch_feed(){
		return file_get_contents("https://api.twitter.com/1/statuses/user_timeline.json?screen_name={$this->username}&count={$this->limit}");
	}

	private static function relativeTime($time){

		$divisions	= array(1,60,60,24,7,4.34,12);
		$names		= array('second','minute','hour','day','week','month','year');
		$time		= time() - strtotime($time);

		$name = "";

		if($time < 10){
			return "just now";
		}

		for($i=0; $i<count($divisions); $i++){
			if($time < $divisions[$i]) break;

			$time = $time/$divisions[$i];
			$name = $names[$i];
		}

		$time = round($time);

		if($time != 1){
			$name.= 's';
		}

		return "$time $name ago";
	}

	private static function formatTweet($str){

		// Linkifying URLs, mentionds and topics. Notice that
		// each resultant anchor type has a unique class name.

		$str = preg_replace(
			'/((ftp|https?):\/\/([-\w\.]+)+(:\d+)?(\/([\w\/_\.]*(\?\S+)?)?)?)/i',
			'<a class="link" href="$1" target="_blank">$1</a>',
			$str
		);

		$str = preg_replace(
			'/(\s|^)@([\w\-]+)/',
			'$1<a class="mention" href="http://twitter.com/#!/$2" target="_blank">@$2</a>',
			$str
		);

		$str = preg_replace(
			'/(\s|^)#([\w\-]+)/',
			'$1<a class="hash" href="http://twitter.com/search?q=%23$2">#$2</a>',
			$str
		);

		return $str;
	}
}

?>