show.tweets.php

<?php
class GetMyTweets
{
	private $username = null;
	private $password = null;

	/**
	 * Overloaded constructor used to set the username and password for the class
	 */
	public function __construct( $_username, $_password )
	{
		$this -> username = $_username;
		$this -> password = $_password;
	}

	/**
	 * Public functino that gets called by external programs to get and display the tweets according to the count, or it will use the default of 20 :)
	 */
	public function displayTweets( $count = 20 )
	{
		$tweets = $this -> getTweets( $count );
	}

	/**
	 * Private function used to get the tweets and display them
	 */
	private function getTweets( $count = 20 )
	{
		// Initialize counter to zero
		$counter = 0;

		// Get the twitter feed via the fetchExternFeed function
		$twitter_feed = $this -> fetchExternalFeed( "http://twitter.com/statuses/user_timeline.xml", $this -> username, $this -> password );

		// Failsafe check to make certain that a actual XML object was returned
		// Also, I am using the new way of using if-statements, so don't get confused ;)
		if( $twitter_feed ) :
			// Remember the foreach from a previous post?
			// As you can see, I am also using the same shorthand for the foreach as with the if-statement
			// Here I am just iterating over all the statuses that were returned from the twitter feed
			foreach( $twitter_feed -> status as $status ) :
				// Check whether the counter is still less than the allowed count
				if( $counter < $count ) :
					// Iterate over the keys of the status (there are quite a few entries per status, such as GeoData, time, application used, etc etc. Read the 
					// Twitter Wiki for more information about this
					foreach( $status as $key => $value ) :
						// Evaluate the keys and find the one's that you want to interact with
						// I left a couple of the other key's in here so that you can experiment a bit and see what it does ;)
						switch( $key ) :
							case "created_at"								:	break;	// Date and time of the tweet in GMT format
							case "id"												:	echo "Tweet ID : " . $value . "<br />";
																								break;
							case "text"											:	echo "Tweet : " . $value . "<br />";
																								break;
							case "source"										:	break;	// The application's name that was used to create the tweet
							case "in_reply_to_status_id"		:	break;	// The tweet could have been in reply to another tweet, and this would contain that tweets' ID.
																												// You can use this to get that specific tweet ;)
							case "in_reply_to_user_id"			:	break;	// The id of the original poster that this is a reply on
							case "favorited"								:	break;	//	If the tweet has been favorited
							case "in_reply_to_screen_name"	:	break;	//	The twitter username of who the reply is to
							case "user"											:	break;	//	This username
							default													:	break;
						endswitch;						
					endforeach;
					echo "<hr />";
					// Increment counter
					$counter++;
				endif;
			endforeach;
		else :
			echo "Could not retrieve twitter feed at this time";
		endif;
	}

	/**
	 * This function uses the cURL library to fetch a remote server's source via a specific URL/feed and authenticates with the username and password provided
	 * and returns the results as a XML document object that PHP can interact with
	 */
	private function fetchExternalFeed($feed, $user, $pass)
	{
		$ch = curl_init( $feed );
		curl_setopt($ch,	CURLOPT_HEADER,						true									);
		curl_setopt($ch,	CURLOPT_TIMEOUT,					30										);
		curl_setopt($ch,	CURLOPT_USERPWD,					$user . ":" . $pass 	);
		curl_setopt($ch,	CURLOPT_RETURNTRANSFER, 	true									);
		curl_setopt($ch,	CURLOPT_SSL_VERIFYPEER,		false									);
		curl_setopt($ch,	CURLOPT_SSL_VERIFYHOST,		false									);
		$result = curl_exec( $ch );
		$data = strstr( $result, "<?" );
		
		$xml = new SimpleXmlElement( $data );
		return $xml;
	}
}

$myTweets = new GetMyTweets( "twitter_username", "twitter_password" );
$myTweets -> displayTweets( 20 );
?>