API - Twitter API integration

Launched on April 14th 2009

Role - Founder, Web Designer, Web Developer

Built with xHTML, PHP, XSPF, XML and CURL

  //Loads Twitter atom API feed
  $feed =  simplexml_load_file('http://search.twitter.com/search.atom?q=%40intrabang&rpp=30&page=1');
  $children =  $feed->children('http://www.w3.org/2005/Atom');

  //Creates new XML Document
  $doc = new DOMDocument();
  $doc->formatOutput = true;

  //Sets first element as Playlist with name space of http://xspf.org/ns/0/
  $t = $doc->createElement( "playlist");
  $doc->xmlns="http://xspf.org/ns/0/";
  $doc->appendChild( $t );

  //Sets child element as trackList
  $r = $doc->createElement( "trackList" );
  $doc->appendChild( $r );

  //This pulls info out of the twitter atom API feed
  $entries = $children->entry;
  foreach ($entries as $entry)
  {

	    //Sets details to be each child element of Twitter atom API feed
  		$details = $entry->children('http://www.w3.org/2005/Atom');

	    //Sets description to be main content Twitter atom API feed - we need to pull correct info out of this
	  	$description = $details->content->asXML();

        //Cleans description
		$description = str_ireplace("<a href=\"http://twitter.com/intrabang\"><b>@intrabang</b></a>", "", 					$description);
		$description = str_ireplace("", "", $description);

		//Finds Mp3 link and cleans it
		$link = stristr($description, 'http://');
		$link = htmlentities($link);     

        //Finds Artist start of text
		$artist = stristr($description, 'A:');
		//Finds Artist end of text
		$artist = substr($artist, 0, strpos($artist, "T:"));
		$artist = str_ireplace("A:", "", $artist);
		//Removes whitespace
		$artist = trim($artist);
		//Cleans artist
		$artist = htmlentities($artist);  

        //Finds Track name start of text
		$track = stristr($description, 'T:');
		//Finds Track name end of text
		$track = substr($track, 0, strpos($track, "F:"));
		$track = str_ireplace("T:", "", $track);
		//Removes whitespace
		$track = trim($track);
		//Cleans Track name
		$track = htmlentities($track);

        //Pulls Twitter Username out (already clean)
		$user =  $details->author->name;
		//Removes the (Firstname Lastname)
		$user = substr($user, 0, strpos($user, "("));

		//Pulls Twitter account link out (already clean)
		$userlink =  $details->author->uri;

	    //CURL checks header of Mp3 link
        $c3 = curl_init();
		curl_setopt($c3, CURLOPT_URL, $link);
		curl_setopt($c3, CURLOPT_HEADER, true);
		curl_setopt($c3, CURLOPT_NOBODY, true);
		curl_setopt($c3, CURLOPT_RETURNTRANSFER, true);
		$header = curl_exec($c3);
		curl_close($c3);

		//If header contains audio/mpeg anywhere in the content and if exists writes XSPF XML
		if(strpos($header, "Content-Type: audio/mpeg"))
		{

			$b = $doc->createElement( "track" );

  			$location = $doc->createElement( "location" );
  			$location->appendChild(
  			$doc->createTextNode( $link )
  			);
  			$b->appendChild( $location );

  			$creator = $doc->createElement( "creator" );
  			$creator->appendChild(
  			$doc->createTextNode( $artist )
  		    );
  			$b->appendChild( $creator );

  			$album = $doc->createElement( "album" );
  			$album->appendChild(
  			$doc->createTextNode( "The Twitter List" )
  			);
  			$b->appendChild( $album );

  			$title = $doc->createElement( "title" );
  			$title->appendChild(
  			$doc->createTextNode( $track )
  			);
  			$b->appendChild( $title );

  			$annotation = $doc->createElement( "annotation" );
  			$annotation->appendChild(
  			$doc->createTextNode( $user )
  			);
  			$b->appendChild( $annotation );

  			$duration = $doc->createElement( "duration" );
  			$duration->appendChild(
  			$doc->createTextNode( "" )
  		   	);
  			$b->appendChild( $duration );

  			$image = $doc->createElement( "image" );
  			$image->appendChild(
  			$doc->createTextNode("default.png")
  			);
  			$b->appendChild( $image );

  			$info = $doc->createElement( "info" );
  			$info->appendChild(
  			$doc->createTextNode( $userlink )
  			);
  			$b->appendChild( $info );

  			$r->appendChild( $b );
            $t->appendChild( $r );

  		}
  }

  //Writes and saves XSPF XML
  echo $doc->saveXML();
  $doc->save("xspf.xml")