为什么facebook不喜欢这段代码？

Question

I've made some progress on getting facebook to share some adds grom my website that are generated dynamically from mysql database. I can insert an Iframe on the main page of my site.

<iframe src="//www.facebook.com/plugins/like.php? href=http://www.webaddress.com.au/description.php%3Fid%3D'.$id.'&amp;width&amp;layout=standard&amp;action=like&amp;show_faces=true&amp;share=true&amp;height=80&amp;appId=596610807121620" scrolling="no" frameborder="0" style="border:none; overflow:hidden; height:80px;" allowTransparency="true"></iframe>

Then on the page this links to I have the following metatags.

<meta property="og:title" content="Listed in the Two Year Olds section" />
  <meta property="og:url" content="<?php echo $_SERVER['PHP_SELF'];?>" />
  <meta property="og:description" content="<?php echo $row['horsename'];?> " />

Is there a more Facebook freindly way of doing this? As it seems to work sometimes but not all the time?

Thanks

Answer 1

First off, what makes you think Facebook doesn't like this code?

Since you're saying it works sometimes and not others, I'm going to guess that the problem is that you're generating invalid HTML in some cases. Any time you use text in the context of HTML, you need to escape it. htmlspecialchars() can do this for you.

<meta property="og:url" content="<?php echo htmlspecialchars($_SERVER['PHP_SELF']); ?>" />
<meta property="og:description" content="<?php echo htmlspecialchars($row['horsename']); ?> " />

I might also suggest using a template engine, as this gets a little busy if you have a lot of dynamic content on your pages.