I am using cURL to get some XML from a blog. I want to loop through the XML and output list items that consist of the link wrapped around the title IE <li><a href="link">Title</a></li>
Easy enough. The issue is that there are 3 <links>
in each <entry>
node.
The first one is correct, the other two have incorrect directory structures and hash's that don't open the post when clicked. Currently I am just trimming the known added directories using str_replace
. If the added directories "/feed/atom" change, that won't work in my case, so it's not a good solution. I want to do something like $link[0] to only return the first link.
Simplified returned xml
<entry>
<author>
<name>Name</name>
<uri>http://www.url.com</uri>
</author>
<title>Title</title>
<link href="http://www.url1.com" />
<link href="http://www.url2.com#comments" />
<link href="http://www.url3.com/feed/atom/" />
</entry>
I only need the first one, in this case <link href="http://www.url1.com" />
str_replace in action now
<?php
function download_page($path){
//cURL stuff, all good
}
$sXML = download_page('http://example.org/feed/atom/');
$oXML = new SimpleXMLElement($sXML);
$items = $oXML->entry;
$i = 0;
foreach($items as $item) {
$title = $item->title;
$link = $item->link;
//$link = $item->link[0] or {0} neither works. Want the first one in the <entry> node
echo '<li>';
foreach($link as $links) {
$loc = $links['href'];
$href = str_replace("/feed/atom/", "", $loc);
echo "<a href=\"$href\" target=\"_blank\">";
}
echo $title;
echo "</a>";;
echo "</li>";
if(++$i == 3) break;
}
?>
function download_page($path){
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$path);
curl_setopt($ch, CURLOPT_FAILONERROR,1);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION,1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch, CURLOPT_TIMEOUT, 15);
$retValue = curl_exec($ch);
curl_close($ch);
return $retValue;
}
$xml = download_page('http://foo.com/tradeblog/feed/atom/');
function getHref($__xml){
$xml = new SimpleXMLElement($__xml);
foreach($xml as $node){
foreach($node->attributes() as $prop => $val){
if($prop === 'href'){
$p = strrpos($val, '/');
$val = substr($val, $p);
return $val;
}
}
}
}
$link = getHref($xml);
echo $link;
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.