hreflang implementation for php.net

Hey, in recent days I've started noticing Google serving the wrong page for specific functions in the search results. It served me the german and portuguese versions of page when I was clearly searching in english with a browser that's set to english. I think this could be helped by implementing hreflang across php.net: https://support.google.com/webmasters/answer/189077?hl=en because of how the php.net structure works, I think this could actually be quite simple for large groups of pages, for instance, this page: http://us2.php.net/manual/en/function.version-compare.php would have hreflang tags like this, the first one being self referencing: <link rel="alternate" hreflang="en" href=" http://php.net/manual/en/function.version-compare.php" /> <link rel="alternate" hreflang="pt-BR" href=" http://php.net/manual/pt_BR/function.version-compare.php" /> <link rel="alternate" hreflang="es" href=" http://php.net/manual/es/function.version-compare.php" /> <link rel="alternate" hreflang="de" href=" http://php.net/manual/de/function.version-compare.php" /> (Leaving out the us2. subdomain so people would redirect to their appropriate servers) etc. You could also add a redirector URL like this: <link rel="alternate" hreflang="x-default" href=" http://php.net/manual/function.version-compare.php" /> Which Google would then send people to if it didn't know what the correct language for that person is. Would be happy to provide help / more info if needed! Best Joost -- Joost de Valk Founder & CEO, Yoast