Question

我正面临一个奇怪的问题，即使用PHP从Wired阅读RSS feed。我想在我的网站上显示Feed。我使用以下代码来获取Feed。任何人都可以让我知道我在哪里做错了。

try {
    $rss = new DOMDocument();
    $rss->load('https://www.wired.com/category/reviews/feed/');
    if ($rss->validate()) {
        echo "This document is valid!\n";
    }else{
        echo "This document is not valid!\n";
    }
}catch (Exception $e) {
    return array('error'=>'Error raised in reading the feed','exception'=>$e);
}

$feeds =  array();
foreach ($rss->getElementsByTagName('item') as $node) {
    $item = array ( 
        'title' => $node->getElementsByTagName('title')->item(0)->nodeValue,
        'desc' => $node->getElementsByTagName('description')->item(0)->nodeValue,
        'link' => $node->getElementsByTagName('link')->item(0)->nodeValue,
    );
    array_push($feeds, $item);
}

在执行上述代码后，我收到以下错误

Warning: DOMDocument::load(): Start tag expected, '<' not found in https://www.wired.com/category/reviews/feed/, line: 1 in D:\xampp\htdocs\my_functions\index.php on line 4

Warning: DOMDocument::validate(): no DTD found! in D:\xampp\htdocs\my_functions\index.php on line 5
This document is not valid!

我还检查了＆＃34; Feed验证器（https://www.feedvalidator.org/）中有线Feed网址的有效性，并说它是一个有效的RSS Feed ......

任何帮助非常感谢。谢谢！

Answer 1

我使用curl和simplexml

以我的方式尝试了此代码

$handle = curl_init('https://www.wired.com/category/reviews/feed/');

curl_setopt($handle, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($handle, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($handle, CURLOPT_FOLLOWLOCATION, TRUE); 
curl_setopt($handle, CURLOPT_CUSTOMREQUEST, "GET");
curl_setopt($handle, CURLOPT_ENCODING, 'identity');

/* Get the HTML or whatever is linked in $url. */
$response = curl_exec($handle);

curl_close($handle);

$xml = simplexml_load_string($response, "SimpleXMLElement", LIBXML_NOCDATA);
$json = json_encode($xml);
$data = json_decode($json, true);
// print_r($data);
$feeds =  array();
if(isset($data['channel']['item'])) {
    foreach($data['channel']['item'] as $item) {
        $feeds[] =  array(
            'title' =>  $item['title'],
            'desc'  =>  $item['description'],
            'link'  =>  $item['link'],
        );
    }
}
print_r($feeds);

Answer 2

谢谢@Gaurav ..和我的版本与Domdocument

define('RSS_FEED_URL', 'https://www.wired.com/category/reviews/feed/');
try {
    // fetch the rss feeds from wired!
    $handle = curl_init(RSS_FEED_URL);

    curl_setopt($handle, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($handle, CURLOPT_RETURNTRANSFER, TRUE);
    curl_setopt($handle, CURLOPT_FOLLOWLOCATION, TRUE); 
    curl_setopt($handle, CURLOPT_CUSTOMREQUEST, "GET");
    curl_setopt($handle, CURLOPT_ENCODING, 'identity');

    $response = curl_exec($handle);
    curl_close($handle);

    $rss = new DOMDocument();
    $rss->loadXML($response);
}catch (Exception $e) {
    echo "Failed to fetch RSS Feed properly for Blogs!!";
    return array();
}

foreach ($rss->getElementsByTagName('item') as $node) {
    $feeds[] = array ( 
        'title' => $node->getElementsByTagName('title')->item(0)->nodeValue,
        'desc' => $node->getElementsByTagName('description')->item(0)->nodeValue,
        'link' => $node->getElementsByTagName('link')->item(0)->nodeValue,
        // 'date' => $node->getElementsByTagName('pubDate')->item(0)->nodeValue,
    );
}

无法使用PHP

2 个答案: