php XMLWriter类的简单示例

include 'mysql.php';
$mysql= mysql::getObject();
$mysql->query("SELECT * FROM post");

$xml = new XMLWriter();

$xml->openUri('hello.xml'); //  or 'php://output'

$xml->setIndentString('   ');
$xml->setIndent(true);
// start
$xml->startDocument('1.0', 'UTF-8');

//
$xml->startElement('rss');
   $xml->writeAttribute('version','2.0');
  
 //
 $xml->startElement('channel');
     // title
     $xml->startElement('title');
          $xml->text('title');
     $xml->endElement();
     // link
     $xml->startElement('link');
          $xml->text('http://foodstory.me/post/');
     $xml->endElement();
     // description
     $xml->startElement('description');
          $xml->text('');
     $xml->endElement();
     // language
     $xml->startElement('language');
          $xml->text('zh-cn');
     $xml->endElement();
     // category
     $xml->startElement('category');
          $xml->text('IT');
     $xml->endElement();
     // copyright
     $xml->startElement('copyright');
          $xml->text('copyright 2011 foodstory.me');
     $xml->endElement();

     // for item
     while( $row = $mysql->fetch() )
     {
      $xml->startElement('item');
         // title
        $xml->startElement('title');
             $xml->text( $row['title']);
        $xml->endElement();
        // link
        $xml->startElement('link');
             $xml->text( 'http://foodstory.me/post/'.$row['id'].'.html');
        $xml->endElement();
        // description
        $xml->startElement('description');
             $xml->text( $row['text'] );
        $xml->endElement();
        // pubDate
        $xml->startElement('pubDate');
             $xml->text( date('D, d M Y H:i:s T', $row['time']) );
        $xml->endElement();
       
        // category tag author need to write .over
      $xml->endElement(); // item
     }
 $xml->endElement(); // channel
$xml->endElement();  // rss

$xml->endDocument();
// $xml->flush();