Question

我使用Simple HTML DOM抓取页面以获取最新消息，然后使用此PHP class生成RSS Feed。

这就是我现在所拥有的：

<?php

 // This is a minimum example of using the class
 include("FeedWriter.php");
 include('simple_html_dom.php');

 $html = file_get_html('http://www.website.com');

foreach($html->find('td[width="380"] p table') as $article) {
$item['title'] = $article->find('span.title', 0)->innertext;
$item['description'] = $article->find('.ingress', 0)->innertext;
$item['link'] = $article->find('.lesMer', 0)->href;     
$item['pubDate'] = $article->find('span.presseDato', 0)->plaintext;     
$articles[] = $item;
}


//Creating an instance of FeedWriter class. 
$TestFeed = new FeedWriter(RSS2);


 //Use wrapper functions for common channel elements

 $TestFeed->setTitle('Testing & Checking the RSS writer class');
 $TestFeed->setLink('http://www.ajaxray.com/projects/rss');
 $TestFeed->setDescription('This is test of creating a RSS 2.0 feed Universal Feed Writer');

  //Image title and link must match with the 'title' and 'link' channel elements for valid RSS 2.0

  $TestFeed->setImage('Testing the RSS writer class','http://www.ajaxray.com/projects/rss','http://www.rightbrainsolution.com/images/logo.gif');


foreach($articles as $row) {

    //Create an empty FeedItem
    $newItem = $TestFeed->createNewItem();

    //Add elements to the feed item    
    $newItem->setTitle($row['title']);
    $newItem->setLink($row['link']);
    $newItem->setDate($row['pubDate']);
    $newItem->setDescription($row['description']);

    //Now add the feed item
    $TestFeed->addItem($newItem);
}

  //OK. Everything is done. Now genarate the feed.
  $TestFeed->genarateFeed();

?>

如何使此代码更简单？对，知道有两个foreach语句，我如何组合它们？

因为新闻报道的是挪威语，我需要在标题上应用html_entity_decode（）。我在这里尝试过，但我无法让它工作：

foreach($html->find('td[width="380"] p table') as $article) {
$item['title'] = html_entity_decode($article->find('span.title', 0)->innertext, ENT_NOQUOTES, 'UTF-8');
$item['description'] = "<img src='" . $article->find('img[width="100"]', 0)->src . "'><p>" . $article->find('.ingress', 0)->innertext . "</p>";    
$item['link'] = $article->find('.lesMer', 0)->href;     
$item['pubDate'] = unix2rssdate(strtotime($article->find('span.presseDato', 0)->plaintext));
$articles[] = $item;
}

谢谢：）

Answer 1

您似乎循环遍历$html以构建一系列文章，然后循环浏览这些添加到Feed中 - 您可以通过在找到Feed时向其中添加项目来跳过整个循环。为此，您需要在执行流程中稍稍移动FeedWriter contstructor。

我还添加了几种方法来帮助提高可读性，从长远来看，这可能有助于维护。如果您需要为Feed添加不同的提供程序类，更改解析规则等，那么封装您的Feed创建，项目修改等应该会更容易。可以对以下代码进行进一步的改进（{{1}在html_entity_decode任务等单独的一行上，你可以得到一般的想法。

您与$item['title']有什么问题？你有一个输入/输出样本吗？

html_entity_decode

Answer 2

对于两个循环的简单组合，您可以通过HTML创建Feed作为解析：

<?php
include("FeedWriter.php");
include('simple_html_dom.php');

$html = file_get_html('http://www.website.com');

//Creating an instance of FeedWriter class. 
$TestFeed = new FeedWriter(RSS2);
$TestFeed->setTitle('Testing & Checking the RSS writer class');
$TestFeed->setLink('http://www.ajaxray.com/projects/rss');
$TestFeed->setDescription(
  'This is test of creating a RSS 2.0 feed Universal Feed Writer');

$TestFeed->setImage('Testing the RSS writer class',
                    'http://www.ajaxray.com/projects/rss',
                    'http://www.rightbrainsolution.com/images/logo.gif');

//parse through the HTML and build up the RSS feed as we go along
foreach($html->find('td[width="380"] p table') as $article) {
  //Create an empty FeedItem
  $newItem = $TestFeed->createNewItem();

  //Look up and add elements to the feed item   
  $newItem->setTitle($article->find('span.title', 0)->innertext);
  $newItem->setDescription($article->find('.ingress', 0)->innertext);
  $newItem->setLink($article->find('.lesMer', 0)->href);     
  $newItem->setDate($article->find('span.presseDato', 0)->plaintext);     

  //Now add the feed item
  $TestFeed->addItem($newItem);
}

$TestFeed->genarateFeed();
?>

您使用html_entity_decode看到的问题是什么，如果您向我们提供指向不起作用的网页的链接可能会有所帮助？

Answer 3

如何让这段代码更简单？

我知道这不是你要问的，但你知道[http://pipes.yahoo.com/pipes/](Yahoo！管道）？

Answer 4

也许你可以使用像Feedity这样的东西 - http://feedity.com已经解决了从任何网页生成RSS Feed的问题。

抓取并生成RSS提要

4 个答案: