使用 php 和 simplexml 从 rss feed 中的描述中获取图像 url

发布于 2024-08-24 01:07:07 字数 1873 浏览 7 评论 0 原文

我正在尝试设置一个由来自 3 个不同 RSS 提要的图像组成的 3 列的 php 页面。第一个提要来自 Wordpress 博客，第二个提要来自 Etsy 商店，第三个提要来自 Flickr 提要。

我想做的是从每个提要的前 3 项中获取图像的链接。

相关信息：

Wordpress feed 将链接放在描述中，其格式为 CDATA。
Etsy feed 将图像链接作为描述中的第一项（例如），但也将其放在标记中。
Flickr feed 的描述中包含该链接，但它排在用户个人资料链接和照片页面链接之后的第三位。还有。

我已经阅读了 php 和 simplexml 的基础知识，但似乎我想要做的事情对我来说太复杂了，无法自己弄清楚。我希望有一个单独的functions.php 文件，这样我只需调用网页上的函数即可。

ETA：

我已经使用 Etsy feed 提取了图像

<代码> 函数 getEtsyFeed($feed_url) {
$content = file_get_contents($feed_url);
$x = new SimpleXmlElement($content);
echo "
";
foreach($x->通道->item as $entry) {
回声“

< br>
";
}
回声“
”;
}
？>

以及使用 Flickr feed 提取的图像

<代码> 函数 getFlickrFeed($feed_url) {
$content = file_get_contents($feed_url);
$x = new SimpleXmlElement($content);
echo "
";
foreach($x->通道->item as $entry) {
回声“

}
回声“
”;
}
？>

我仍然不确定如何处理博客提要，或者如何仅显示前 3 张图像而不破坏我现有的代码。

原文

I'm trying to set up a php page made up of images from 3 different RSS feeds, in 3 columns. The first feed is from a Wordpress blog, the second from an Etsy store, and the third from a Flickr feed.

What I would like to do is grab the link to the images from the first 3 items in each feed.

Relevant information:

The Wordpress feed puts the link in the description, which is formatted as CDATA.
The Etsy feed puts the image link as the first item in the description (E.g. <img src="http://ny-image2.etsy.com/il_155x125.126568958.jpg" />), but also has it in a <g:image_link> tag.
The Flickr feed has the link in the description, but it comes third after links for the user's profile and a link to the photo page. There is also <media:content url="http://farm5.static.flickr.com/4016/4377189674_d6f3aafa81_m.jpg" type="image/jpeg" height="159" width="240"/>.

I've read over the basics of both php and simplexml but it seems what I'd like to do is too complicated for me to figure out on my own. I'd prefer to have a separate functions.php file so I only have to call the function on the web page.

ETA:

I've got the images for the Etsy feed pulled using

<?php function getEtsyFeed($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'><img src=" . $entry->children('g', true)->image_link . " /></a> </li>"; } echo "</ul>"; } ?>

and the images from the Flickr feed pulled using

<?php function getFlickrFeed($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'><img src=" . $entry->children('media', true)->thumbnail->attributes()->url . " /></a> </li>"; } echo "</ul>"; } ?>

I'm still not sure what to do about the blog feed, or how to only show the first 3 images without breaking the code that I do have.

分享到QQ

分享到微博