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

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:


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.

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