How do I find out the version of HTTP in a request using PHP and Apache

Question

I need to determine whether an HTTP request was an HTTP/1.0 or an HTTP/1.1 request in my PHP script, which is running under Apache. Is there a way to query this information?

Answer 1

$_SERVER['SERVER_PROTOCOL'] as at http://www.php.net/manual/en/reserved.variables.server.php