SimplePie multiple feed demonstration code doesn't work. What should I use instead?

StackOverflow https://stackoverflow.com/questions/15302989

  •  18-03-2022
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質問

I am trying to figure out why the code posted on the SimplePie website for displaying multiple feeds doesn't work. Specifically, this code example:

http://simplepie.org/wiki/tutorial/sort_multiple_feeds_by_time_and_date

Here is specifically what I am using:

<?php
// Include the SimplePie library
// For 1.0-1.2:
#require_once('simplepie.inc');
require_once($_SERVER['DOCUMENT_ROOT']."/path/to/simplepie/autoloader.php");
// For 1.3+:

// Create a new SimplePie object
$feed = new SimplePie();

// Instead of only passing in one feed url, we'll pass in an array of three
$feed->set_feed_url(array(
'http://apps.leg.wa.gov/billinfo/SummaryRss.aspx?bill=1891&year=2013',
'http://apps.leg.wa.gov/billinfo/SummaryRss.aspx?bill=1313&year=2013',
'http://apps.leg.wa.gov/billinfo/SummaryRss.aspx?bill=5811&year=2013',
'http://apps.leg.wa.gov/billinfo/SummaryRss.aspx?bill=1044&year=2013',
'http://apps.leg.wa.gov/billinfo/SummaryRss.aspx?bill=1804&year=2013',
'http://apps.leg.wa.gov/billinfo/SummaryRss.aspx?bill=5512&year=2013',
'http://apps.leg.wa.gov/billinfo/SummaryRss.aspx?bill=5127&year=2013',
'http://apps.leg.wa.gov/billinfo/SummaryRss.aspx?bill=5128&year=2013',
'http://apps.leg.wa.gov/billinfo/SummaryRss.aspx?bill=1440&year=2013',
'http://apps.leg.wa.gov/billinfo/SummaryRss.aspx?bill=1085&year=2013',
'http://apps.leg.wa.gov/billinfo/SummaryRss.aspx?bill=1095&year=2013',
'http://apps.leg.wa.gov/billinfo/SummaryRss.aspx?bill=5395&year=2013',
'http://apps.leg.wa.gov/billinfo/SummaryRss.aspx?bill=5429&year=2013',
'http://apps.leg.wa.gov/billinfo/SummaryRss.aspx?bill=5482&year=2013',
'http://apps.leg.wa.gov/billinfo/SummaryRss.aspx?bill=1812&year=2013',
'http://apps.leg.wa.gov/billinfo/SummaryRss.aspx?bill=1457&year=2013'
));

// Initialize the feed object
$feed->init();

// This will work if all of the feeds accept the same settings.
$feed->handle_content_type();

// Begin our HTML markup
?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> 
<head>
    <title>Awesome feeds</title>

    <style type="text/css">
    h4.title {
        /* We're going to add some space next to the titles so we can fit the 16x16 favicon image. */
        background-color:transparent;
        background-repeat:no-repeat;
        background-position:0 1px;
        padding-left:20px;
    }
    </style>
</head>
<body>
    <div id="site">

        <?php if ($feed->error): ?>
        <p><?php echo $feed->error; ?></p>
        <?php endif; ?>

        <h1>Awesome feeds</h1>

        <?php foreach ($feed->get_items() as $item): ?>

        <div class="chunk">

            <?php /* Here, we'll use the $item->get_feed() method to gain access to the parent feed-level data for the specified item. */ ?>
            <h4 class="title" style="background-image:url(<?php $feed = $item->get_feed(); echo $feed->get_favicon(); ?>);"><a href="<?php echo $item->get_permalink(); ?>"><?php echo $item->get_title(); ?></a></h4>

            <?php echo $item->get_content(); ?>

            <p class="footnote">Source: <a href="<?php $feed = $item->get_feed(); echo $feed->get_permalink(); ?>"><?php $feed = $item->get_feed(); echo $feed->get_title(); ?></a> | <?php echo $item->get_date('j M Y | g:i a T'); ?></p>

        </div>

        <?php endforeach; ?>

    </div>
</body>
</html>

And this is the HTML output I get:

<body>
    <div id="site">

        <h1>Awesome feeds</h1>

        <div class="chunk">
 <h4 class="title" style="background-image:url(<br />
<b>Warning</b>:  Favicon handling has been removed, please use your own handling in <b>/home/user/domain/library/SimplePie.php</b> on line <b>2946</b><br />
http://g.etfv.co/http%3A%2F%2Fapps.leg.wa.gov%2Fbillinfo%2Fsummary.aspx%3Fbill%3D1044%26amp%3Byear%3D2013);"><a href="<br />
<b>Fatal error</b>:  Call to a member function get_base() on a non-object in <b>/home/user/domain/folder/subfolder/simplepie/library/SimplePie/Item.php</b> on line <b>167</b><br />

I've tried tinkering around with the code (for instance, I can do without favicons), but I always get fatal error messages saying "Call to a member function [fill in the blank] on a non-object in [SimplePie file]".

Is there more up-to-date code that I should be using as a template for constructing pages that process multiple feeds? What's breaking that's preventing SimplePie from working?

役に立ちましたか？

解決

I'm not sure what version of SimplePie you're using but apparently

Favicon handling has been removed, please use your own handling in /home/user/domain/library/SimplePie.php on line 2946

Assuming you don't want to debug SimplePie itself, you should not call this:

$feed->get_favicon()

For starters. I don't know why favicon support was removed, because I use it, but then again I might have written a work around or I'm using an older (inferior) version of SimplePie. Yank out the favicon stuff and try again.

他のヒント

I didn't like looking at the sample code the way it was, with an instance of $feed in one scope and another instance of $feed in the scope of the foreach() construct. So, I renamed the first instance of $feed to $the_feed, while leaving the $feed variables within the foreach as they were.

The complaints of calls to methods on non-objects went away on the public (iPage) server.

I got here looking for the answer to a similar problem. In my case, what worked fine on my home server would not work on a public server (iPage). Home server runs PHP Version 5.3.3-7 while public server runs 5.2.17. Another difference is that home server has Server API=Apache 2.0 Handler, while public one has Server API=CGI. Not sure if those points are important.

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