On 9/14/09 9:03 AM, "Tom Worster" <f...@thefsb.org> wrote:

> On 9/13/09 10:24 PM, "Tommy Pham" <tommy...@yahoo.com> wrote:
>> --- On Sun, 9/13/09, Tom Worster <f...@thefsb.org> wrote:
>>> From: Tom Worster <f...@thefsb.org>
>>> Subject: [PHP] server name that the user agent used
>>> To: "PHP General List" <php-general@lists.php.net>
>>> Date: Sunday, September 13, 2009, 8:21 PM
>>> when using apache with one vhost that
>>> responds to a few different hostnames,
>>> e.g. domain.org, y.domain.org, x.domain.org, let's say the
>>> vhost's server
>>> name is y.domain.org and the other two are aliases, is
>>> there a way in php to
>>> know which of these was used by the user agent to address
>>> the server?
>> Did you see what comes up with php_info() for
> SERVER_NAME returns whatever apache has as the vhost's configured server
> name.
> the php manual says of HTTP_HOST: "Contents of the Host: header from the
> current request, if there is one." in which the last 4 words are a little
> off-putting. but:
> http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.23
> i much more encouraging. the field is mandatory and should have what i'm
> looking for. it's absence is cause for a 400. casual testing (with a modern
> non-ie browser) seems to bear this out.
> so i'll try using that with fallback to my current techniques if i don't
> find a good value in HTTP_HOST.

extra info: the Host: header isn't in HTTP/1.0, hence those off-putting 4
words, i guess.

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