feed.php

<?php

        /*
        Plugin Name: Plugin Rss with thumbnails
        Plugin URI:
        Description: Esse plugin é um feed-reader como outro qualquer, porém, ele apresenta também os thumbnails presentes no feed
        Author: Rodrigo Morbach
        Version: 1
        Author URI: http://www.mundodosaber.com.br/
        */

class PluginRssThumb extends WP_Widget
{
  function PluginRssThumb()
  {
    $widget_ops = array('classname' => 'RssWithThumbnails', 'description' => 'Apresenta Feed Rss com Thumbnails' );
    $this->WP_Widget('RssWithThumbnails', 'Rss With Thumbnail', $widget_ops);
  }

  function form($instance)
  {
        $instance = wp_parse_args( (array) $instance, array( 'quantidade' => '' ,'titulo'=>'', 'xml'=>'') );
        $title = $instance['quantidade'];
        $titulo = $instance['titulo'];
        $xml = $instance['xml'];
    ?>
  <p><label for="<?php echo $this->get_field_id('quantidade'); ?>">Quantidade de Feeds: <input class="widefat" id="<?php echo $this->get_field_id('quantidade'); ?>" name="<?php echo $this->get_field_name('quantidade'); ?>" type="text" value="<?php echo attribute_escape($title); ?>" /></label></p>
  <p><label for="<?php echo $this->get_field_id('titulo'); ?>">Titulo (opcional): <input class="widefat" id="<?php echo $this->get_field_id('titulo'); ?>" name="<?php echo $this->get_field_name('titulo'); ?>" type="text" value="<?php echo attribute_escape($titulo); ?>" /></label></p>
  <p><label for="<?php echo $this->get_field_id('xml'); ?>">Informe a URL do Feed: <input class="widefat" id="<?php echo $this->get_field_id('xml'); ?>" name="<?php echo $this->get_field_name('xml'); ?>" type="text" value="<?php echo attribute_escape($xml); ?>" /></label></p>
    <?php
  }

  function update($new_instance, $old_instance)
  {
    $instance = $old_instance;
    $instance['quantidade'] = $new_instance['quantidade'];
    $instance['titulo'] = $new_instance['titulo'];
    $instance['xml'] = $new_instance['xml'];
    return $instance;
  }

  function widget($args, $instance)
  {
    extract($args, EXTR_SKIP);
    $titulo = $instance['titulo'];
    $xml = $instance['xml'];
    echo $before_widget;
    $title = empty($instance['quantidade']) ? ' ' : apply_filters('widget_title', $instance['quantidade']);
    if (!empty($title))
      echo $before_title . $titulo . $after_title;
    if(empty($xml)){
        echo 'Nenhum Feed Encontrado';
    }
    else{
    // Codigo do Widget Aqui
   // echo "<h1>This is my new widget!</h1>";
     // $xml=("http://g1.globo.com/dynamo/vestibular-e-educacao/rss2.xml");
	$xmlDoc = new DOMDocument();
	$xmlDoc->load($xml);




	//get and output "<item>" elements
	$x=$xmlDoc->getElementsByTagName('item');
	for ($i=0; $i<$instance['quantidade']; $i++)//Define quantas noticias aparecer o na pagina
	  {
	  // $item_date=$x->item($i)->getElementsByTagName('pubDate')->item(0)->childNodes->item(0)->nodeValue;
	  $item_title=$x->item($i)->getElementsByTagName('title')->item(0)->childNodes->item(0)->nodeValue;
	  $item_link=$x->item($i)->getElementsByTagName('link')->item(0)->childNodes->item(0)->nodeValue;
	  $item_desc=$x->item($i)->getElementsByTagName('description')->item(0)->childNodes->item(0)->nodeValue;

      echo '<div class="bg-img-noticia">
			<p class="p-titulo-feed">'. $item_title .'</p>
                  <a  href=" '. $item_link .' " title="Ler mais: '. $item_title .' " target="_blank">
			<p class="p-feed-desc">'.$item_desc.'</p>
                      <img src=" '. get_template_directory_uri() . '/images/14-mais-noticias.png" alt="Ler mais">
                    </a>
                  </div>';
    }
	}
         echo $after_widget;
  }

}
add_action( 'widgets_init', create_function('', 'return register_widget("PluginRssThumb");') );?>