使用正则表达式在 PHP 中解析来自 Blogspot.com 的 BlogId

发布于 2024-08-21 13:21:53 字数 271 浏览 11 评论 0原文

如何从给定的 blogspot.com 网址获取 blogid？我从 blogspot.com 查看了网页的源代码，它看起来像这样，

<link rel="EditURI" type="application/rsd+xml" title="RSD" href="http://www.blogger.com/rsd.g?blogID=4899870735344410268" />

我如何解析它以获得数字 4899870735344410268

原文

How can i get the blogid from a given blogspot.com url?
I looked at the source code of the webpage from a blogspot.com it looks like this

<link rel="EditURI" type="application/rsd+xml" title="RSD" href="http://www.blogger.com/rsd.g?blogID=4899870735344410268" />

how can i parse this to get the number 4899870735344410268

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纸伞微斜 2024-08-28 13:21:53

使用 DOMDocument 解析文档，然后使用其方法检索所需元素。

我必须强调这一点：永远不要使用正则表达式来解析 HTML 文档。

function getBlogId($url) {
  $ch = curl_init($url);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  curl_setopt($ch, CURLOPT_AUTOREFERER, 1);
  curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
  curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
  $page = curl_exec ($ch);
  curl_close($ch);

  $doc = new DOMDocument();
  @$doc->loadHTML($page);

  $links = $doc->getElementsByTagName('link');

  foreach($links as $link) {
    $rel = $link->attributes->getNamedItem('rel');

    if($rel && $rel->nodeValue == 'EditURI') {
      $href = $link->attributes->getNamedItem('href')->nodeValue;
      $query = parse_url($href, PHP_URL_QUERY);

      if($query) {
        $queryComp = array();
        parse_str($query, $queryComp);

        if($queryComp['blogID']) {
          return $queryComp['blogID'];
        }
      }
    }
  }

  return false;
}

使用示例：

$id = getBlogId('http://thehouseinmarrakesh.blogspot.com/');
echo $id; // 483911541311389592

Use DOMDocument to parse the document and then use its methods to retrieve the wanted element.

I cannot stress this enough: never use regular expressions to parse an HTML document.

function getBlogId($url) {
  $ch = curl_init($url);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  curl_setopt($ch, CURLOPT_AUTOREFERER, 1);
  curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
  curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
  $page = curl_exec ($ch);
  curl_close($ch);

  $doc = new DOMDocument();
  @$doc->loadHTML($page);

  $links = $doc->getElementsByTagName('link');

  foreach($links as $link) {
    $rel = $link->attributes->getNamedItem('rel');

    if($rel && $rel->nodeValue == 'EditURI') {
      $href = $link->attributes->getNamedItem('href')->nodeValue;
      $query = parse_url($href, PHP_URL_QUERY);

      if($query) {
        $queryComp = array();
        parse_str($query, $queryComp);

        if($queryComp['blogID']) {
          return $queryComp['blogID'];
        }
      }
    }
  }

  return false;
}

Example use:

$id = getBlogId('http://thehouseinmarrakesh.blogspot.com/');
echo $id; // 483911541311389592

回复收藏 0 原文

意中人 2024-08-28 13:21:53

$pageContents = file_get_contents('blospot_url');
preg_match('~<link rel="EditURI" type="application/rsd\+xml" title="RSD" href="http://www.blogger.com/rsd.g\?blogID=([0-9]+)" />~', $pageContents, $matches);
echo $matches[1];

$pageContents = file_get_contents('blospot_url');
preg_match('~<link rel="EditURI" type="application/rsd\+xml" title="RSD" href="http://www.blogger.com/rsd.g\?blogID=([0-9]+)" />~', $pageContents, $matches);
echo $matches[1];

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