Get the total entries and the href attribute from an atom feed

[lauthiamkok]

Hi,

I have two problems in this atom reader:

1.
how can I get the total items of this feed which is `<entry>` node?

2.
how can I get the href from the `<link>` node?

<?php
    /**
     * @integer @limit | default:1
     */
    function atom_reader($url,$limit = 1,$title =  null)
    {
        $xml = ($url); //http://twitter.com/statuses/friends_timeline/321998072.rss
        $xmlDoc = new DOMDocument();
        $xmlDoc->load($xml);
    
        # Count the total feed with xpath.
        $xpath = new DOMXPath($xmlDoc);
        $total_feed = $xpath->evaluate('count(entry)');
        
        //return $total_feed;
    
        # Set feed limit.
        $limit_feed = $limit;
    
        # Check if the total feed is less than the limit then use the total feed as the limit.
        if($limit_feed >= $total_feed) $limit_feed = $total_feed;
        
        # Set the variable.
        $output = '';
        
        # get and output "<item>" elements
        $x = $xmlDoc -> getElementsByTagName('entry');
    
        for ($i=0; $i<2; $i++)
        {    
            $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_date = $x->item($i)->getElementsByTagName('updated')->item(0)->childNodes->item(0)->nodeValue;
            $item_content = $x->item($i)->getElementsByTagName('content')->item(0)->childNodes->item(0)->nodeValue;
    
            # NOTE: use this code for the server runs PHP5.3
            # DateTime::add — Adds an amount of days, months, years, hours, minutes and seconds to a DateTime object
            $date = new DateTime($item_date);
    
            # change the date format into Y-m-d H:i:s
            $item_date = $date->format('j F Y');
    
            # count time ago from the published date
            //$time_ago = time_ago($date->format('Y-m-d H:i:s'),'d M Y \a\t H:i');
            $time_ago = $date->format('j F Y');
            
            $output .= '<li><p>'.strip_tags($item_content).'<br/>'.$time_ago.'</p></li>';
        }
        
        return $output;
        
    }
    
    echo atom_reader($url = 'http://www.globaltoleranceconnect.com/profiles/blog/feed?xn_auth=no',$limit = 4);
    ?>

the atom feed I get is like this,

<feed xmlns="http://www.w3.org/2005/Atom">
      <id>http://localhost:8080/resources/timezones</id>
      <title type="text">Time Zones</title>
      <link href="http://localhost:8080/resources/timezones" rel="self">
      </link>
      <author>
        <name>sandra</name>
      </author>
      <entry>
        <id>http://localhost:8080/resources/timezones/Etc_GMT+12</id>
        <title type="text">Etc/GMT+12 :: GMT-12:00</title>
        <link href="http://localhost:8080/resources/timezones/Etc_GMT+12" rel="self">
        </link>
        <author>
          <name>No Author</name>
        </author>
        <updated>1970-01-01T00:00:00.000Z</updated>
        <content type="text">Oct 23, 2008 4:12:37 AM</content>
      </entry>
      <entry>
        <id>http://localhost:8080/resources/timezones/Etc_GMT+11</id>
        <title type="text">Etc/GMT+11 :: GMT-11:00</title>
        <link href="http://localhost:8080/resources/timezones/Etc_GMT+11" rel="self">
        </link>
        <updated>1970-01-01T00:00:00.000Z</updated>
        <content type="text">Oct 23, 2008 5:12:37 AM</content>
      </entry>
      <entry>
        <id>http://localhost:8080/resources/timezones/MIT</id>
        <title type="text">MIT :: West Samoa Time</title>
        <link href="http://localhost:8080/resources/timezones/MIT" rel="self">
        </link>
        <updated>1970-01-01T00:00:00.000Z</updated>
        <content type="text">Oct 23, 2008 5:12:37 AM</content>
      </entry>
      .
      .
      .
      </feed>

this does not return the total items,

$xpath = new DOMXPath($xmlDoc);
        $total_feed = $xpath->evaluate('count(entry)'); 

and this does not get the href of the <link>,

$item_link = $x->item($i)->getElementsByTagName('link')->item(0)->attribute; 

any idea?

Thanks,
Lau