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PHP: Problem with constant/pagetitle and facebook like-button

Answer 1

A:

Facebook's server fetches your page and extracts the title to produce this information. So it's reasonable to guess that your system is (for some reason) rendering the page with a title of "_PAGE_TITLE" instead of the proper value from the language file. This implies that there is something special about facebook's automated request that is causing the language file to never get included.

So what causes the proper lang file to be included? What will your code do if it can't determine which language file to include (e.g. the 'Accept-Language` header is missing... or whatever).

It should fall back to including a default language file (probably english). There must never be a possibility to execute the script without having first included some language file.

Lee 2010-10-31 08:51:31

I check it like this: $lang = (substr($_SERVER['HTTP_ACCEPT_LANGUAGE'], 0, 2) == "de") ? "de" : "en"; So it should fall back to english by default.

2010-10-31 09:24:49

you should confirm that it is. try hitting your site with [curl](http://curl.haxx.se/) (there's a [php version](http://php.net/manual/en/book.curl.php) too). Or use a development proxy like [Charles Proxy](http://www.charlesproxy.com/) to simulate an incoming request like may be coming in from facebook. You might also have luck with examining your webserver logs to find requests from facebook's server, and see what's special about those requests. The point is-- something that's special about facebook's automated requests is causing your language file to not be included.

Lee 2010-10-31 18:12:24

Answer 2

A:

Asnwering to your edit, if you are using the new Facebook API or the Social Plugins, you can override the page title using <meta> tags like this:

<meta property="og:title" content="<?php echo _GERMAN_PAGE_TITLE; ?>" />

Remember! To use this meta property tags, you must declare the Facebook and Open Graph namespaces on the <html> tag.

<html 
    xmlns:og="http://opengraphprotocol.org/schema/"
    xmlns:fb="http://www.facebook.com/2008/fbml"
>

To further reading, take a look at this: http://developers.facebook.com/docs/opengraph

Coquevas 2010-10-31 10:36:31

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PHP: Problem with constant/pagetitle and facebook like-button

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