Parsing RSS Menggunakan Curl dan SimpleXmlElement

Kali ini kita coba menggunakan Curl dan fungsi SimpleXmlElement untuk melakukan parsing file format RSS atau xml. Sebelumnya beberapa fungsi parsing seperti simplexml_load_file juga berfungsi untuk parsing RSS.

Berikut ini contoh kode PHP Curl dan SimpleXmlElement yang digabung untuk parsing RSS mesin pencari Bing.

// Fungsi Curl
function curl( $url ) {
    $headers[]  = 'User-Agent:Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.13) Gecko/20101203 Firefox/3.6.13';
    $headers[]  = 'Accept:text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8';
    $headers[]  = 'Accept-Language:en-us,en;q=0.5';
    $headers[]  = 'Accept-Encoding:gzip,deflate'';
    $headers[]  = 'Accept-Charset:ISO-8859-1,utf-8;q=0.7,*;q=0.7';
    $headers[]  = 'Keep-Alive:115';
    $headers[]  = 'Connection:keep-alive';
    $headers[]  = 'Cache-Control:max-age=0';

    $curl = curl_init();

    curl_setopt( $curl, CURLOPT_URL, $url );
    curl_setopt( $curl, CURLOPT_FOLLOWLOCATION, 1 );
    curl_setopt( $curl, CURLOPT_MAXREDIRS, 2 );
    curl_setopt( $curl, CURLOPT_HTTPHEADER, $headers );
    curl_setopt( $curl, CURLOPT_ENCODING, 'gzip' );
    curl_setopt( $curl, CURLOPT_RETURNTRANSFER, 1 );
    curl_setopt( $curl, CURLOPT_CONNECTTIMEOUT, 10 );
    curl_setopt( $curl, CURLOPT_FOLLOWLOCATION, 1 );

    $data = curl_exec( $curl );
    curl_close( $curl );

    return $data;
}

function parseRSS( $doc ) {
    $output = '<strong>' . $doc->channel->title . '</strong><br />';
    $cnt = count( $doc->channel->item );

    for ( $i = 0; $i < $cnt; $i++ ) {
		$url     = $doc->channel->item[$i]->link;
		$title   = $doc->channel->item[$i]->title;
		$desc    = $doc->channel->item[$i]->description;
		$output .= '<a href="' . $url . '">' . $title . '</a><br />' . $desc . '<br />';
    }

	return $output;
}

$rss = curl( 'http://www.bing.com/search?q=melissa+joan+hart&count=10&format=rss' );
//Fungsi SimpleXmlElement
$doc = new SimpleXmlElement( $rss, LIBXML_NOCDATA );
echo parseRSS( $doc );

Keterangan:

• $doc->channel->title: Menampilkan kata kunci
• $url = $doc->channel->item[$i]->link;: Menampilkan tautan/link
• $title = $doc->channel->item[$i]->title;: Menampilkan judul/title
• $desc = $doc->channel->item[$i]->description;: Menampilkan deskripsi