How to read an RSS Feed using PHP

There are many ways 2 read XML Feed using PHP.

Some basic ways with which this can be done are given below along with code:

Basic Way 1

<?php
function getFeed($feed_url) {
$content = file_get_contents($feed_url);
$x = new SimpleXmlElement($content);

echo "<ul>";

foreach($x->channel->item as $entry) {
echo "<li><a href='$entry->link' title='$entry->title'>" . $entry->title . "</a></li>";
}
echo "</ul>";
}
getFeed('http://somefeedurl/')
?>

In the above method, create a function and call that function.

basic Way 2

  <?php
  include('rssclass.php');
  $feedlist = new rss('http://feeds2.feedburner.com/9lesson');
  <a href="http://www.php.net/echo">echo</a> $feedlist->display(9,"9lessons");

  $feedlist = new rss('http://feeds.feedburner.com/nettuts');
  <a href="http://www.php.net/echo">echo</a> $feedlist->display(9,"Nettuts");

  $feedlist = new rss('http://feeds.labnol.org/labnol');
  <a href="http://www.php.net/echo">echo</a> $feedlist->display(9,"Labnol");
  ?>

<?php
 class rss {
     var $feed;

  function rss($feed)
    {   $this->feed = $feed;  }

  function parse()
    {
    $rss = simplexml_load_file($this->feed);

    $rss_split = <a href="http://www.php.net/array">array</a>();
    foreach ($rss->channel->item as $item) {
$title = (string) $item->title; // Title
    $link   = (string) $item->link; // Url Link
    $description = (string) $item->description; //Description
    $rss_split[] = '<div>
        <a href="'.$link.'" target="_blank" title="" >
            '.$title.'
        </a>
   <hr>
          </div>
';
    }
    return $rss_split;
  }
  function display($numrows,$head)
  {
    $rss_split = $this->parse();

    $i = 0;
    $rss_data = '<div>
           <div>
         '.$head.'
           </div>
         <div>';
    while ( $i < $numrows )
   {
      $rss_data .= $rss_split[$i];
      $i++;
    }
    $trim = <a href="http://www.php.net/str_replace">str_replace</a>('', '',$this->feed);
    $user = <a href="http://www.php.net/str_replace">str_replace</a>('&lang=en-us&format=rss_200','',$trim);
    $rss_data.='</div></div>';
    return $rss_data;
  }
}
?>

.vas{
    float:left;
    width:270px;
    padding:10px;
}
.title-head {
    font-size:18px;
    font-weight:bold;
    text-align:left;
    background-color:#006699;
    color:#FFFFFF;
    padding:5px;}
.feeds-links {
    text-align:left;
    padding:5px;
    border:1px solid #dedede;
 }

Basic Way 3

using SimpleXML

$doc = new SimpleXmlElement($data, LIBXML_NOCDATA);
print_r($doc);
if(isset($doc->channel))
{
    parseRSS($doc);
}
if(isset($doc->entry))
{
    parseAtom($doc);
}

function parseRSS($xml)
{
    echo "<strong>".$xml->channel->title."</strong>";
    $cnt = count($xml->channel->item);
    for($i=0; $i<$cnt; $i++)
    {
	$url 	= $xml->channel->item[$i]->link;
	$title 	= $xml->channel->item[$i]->title;
	$desc = $xml->channel->item[$i]->description;

	echo '<a href="'.$url.'">'.$title.'</a>'.$desc.'';
    }
}
function parseAtom($xml)
{
    echo "<strong>".$xml->author->name."</strong>";
    $cnt = count($xml->entry);
    for($i=0; $i<$cnt; $i++)
    {
	$urlAtt = $xml->entry->link[$i]->attributes();
	$url	= $urlAtt['href'];
	$title 	= $xml->entry->title;
	$desc	= strip_tags($xml->entry->content);

	echo '<a href="'.$url.'">'.$title.'</a>'.$desc.'';
    }
}

Basic Way 4

using Curl

$ch = curl_init("http://localhost/curl/rss.xml")
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, 0);
$data = curl_exec($ch);
curl_close($ch);

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