PHP& Facebook：使用CURL和Facebook调试器调试一个URL [英] PHP & Facebook: facebook-debug a URL using CURL and Facebook debugger

问题描述

事实：我运行一个简单的网站，其中包含文章，通过抓取第三方网站/博客等动态获取的文章（新文章每隔半小时到达我的网站），文章我想在我的Facebook页面上发布。每篇文章通常包括图片，标题和一些文字。

Facts: I run a simple website that contains articles, articles dynamically acquired by scraping third-party websites/blogs etc (new articles arrive to my website every half an hour or so), articles which I wish to post on my facebook page. Each article typically includes an image, a title and some text.

问题：我在Facebook上发布的文章中（几乎全部）没有正确发布 - 他们的图像丢失。

Problem: Most (almost all) of the articles that I post on Facebook are not posted correctly - their images are missing.

无效解决方案：使用Facebook的调试器（这个）我提交了一篇文章的URL（来自我的网站的URL，而不是原始的来源的URL），然后Facebook扫描/删除URL正确提取所需的信息（图像，标题，文本等）。在这个动作之后，这篇文章可以在Facebook上正确发布 - 没有丢失图像或任何东西。

Inefficient Solution: Using Facebook's debugger (this one) I submit an article's URL to it (URL from my website, not the original source's URL) and Facebook then scans/scrapes the URL and correctly extracts the needed information (image, title, text etc). After this action, the article can be posted on Facebook correctly - no missing images or anything.

目标：我以后是一种方式创建一个过程，该过程将向Facebook的调试器提交一个URL，从而迫使Facebook扫描/浏览URL，以便可以正确地发布。我相信我需要做的是创建一个包含URL的HTML POST请求并将其提交给Facebook的调试器。这是正确的方式吗？如果是，由于我以前没有CURL的经验，在PHP中使用CURL的正确方法是什么？

Goal: What I am after is a way to create a process which will submit a URL to Facebook's debugger, thus forcing Facebook to scan/scrape the URL so that it can then be posted correctly. I believe that what I need to do is to create an HTML POST request containing the URL and submit it to Facebook's debugger. Is this the correct way to go? And if yes, as I have no previous experience with CURL, what is the correct way to do it using CURL in PHP?

侧注 ：作为一个附注，我应该提到我使用短的URL我的文章，虽然我不认为这是问题的原因，因为问题仍然存在，即使我使用规范的URL。

Side Notes: As a side note, I should mention that I am using short URLs for my articles, although I do not think that this is the cause of the problem because the problem persists even when I use the canonical URLs.

此外，Open Graph元标记正确设置（og：image，og：description等）。

Also, the Open Graph meta tags are correctly set (og:image, og:description, etc).

推荐答案

您可以使用Facebook图形API使用 PHP-cURL 调试图形对象，方法是执行 POST to

You can debug a graph object using Facebook graph API with PHP-cURL, by doing a POST to

https://graph.facebook.com/v1.0/?id={Object_URL}&scrape=1

使事情更容易，我们可以将调试器包装在一个函数中：

to make thing easier, we can wrap our debugger within a function:

function facebookDebugger($url) {

        $ch = curl_init();
              curl_setopt($ch, CURLOPT_URL, 'https://graph.facebook.com/v1.0/?id='. urlencode($url). '&scrape=1');
              curl_setopt($ch, CURLOPT_POST, 1);
              curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
              curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        $r = curl_exec($ch);
        return $r;

}

虽然这会更新&清除通过的 URL 的Facebook缓存，打印出每个密钥&其内容并避免错误的同时，但是我建议使用 var_dump（）或 print_r（） OR PHP-ref

though this will update & clear Facebook cache for the passed URL, it's a bit hard to print out each key & its content and avoid errors in the same time, however I recommended using var_dump() or print_r() OR PHP-ref

使用与 PHP-ref

r( facebookDebugger('http://retrogramexplore.tumblr.com/') );

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