計數在ATOM項目總飼料

Question

我在此進料計數總項的問題，

$xml = ('http://www.huffingtonpost.com/author/index.php?author=simon-cohen'); 
$xmlDoc = new DOMDocument(); 
$xmlDoc -> load($xml); 

# Get and output "<item>" elements. 
$x = $xmlDoc -> getElementsByTagName('entry'); 

# Count the total feed with xpath. 
$xpath = new DOMXPath($xmlDoc); 
$total_feed = $xpath->evaluate('count(//entry)'); 

echo $total_feed; 

結果，

這樣做的內容飼料是這樣的，

<feed xmlns="http://www.w3.org/2005/Atom" xml:lang="en"> 
<title>Simon Cohen</title> 
<link href="http://huffingtonpost.com/author/index.php?author=simon-cohen"/> 
<updated>2011-11-08T11:40:28-05:00</updated> 
<author> 
<name>Simon Cohen</name> 
</author> 
<id xmlns="http://www.w3.org/2005/Atom"> 
http://www.huffingtonpost.com/author/index.php?author=simon-cohen 
</id> 
<rights>Copyright 2008, HuffingtonPost.com, Inc.</rights> 
<subtitle>HuffingtonPost Blogger Feed for Simon Cohen</subtitle> 
<generator>Good old fashioned elbow grease.</generator> 
<entry>...</entry> 
<entry>...</entry> 
</feed> 

Answer 1

得到我的回答：

# get and output "<entry>" elements 
    $x = $xmlDoc -> getElementsByTagName('entry'); 

    # Count the total feed with xpath. 
    $total_feed = $x->length;