Re: server name that the user agent used

On 9/14/09 9:03 AM, "Tom Worster" <fsb@thefsb.org> wrote: > On 9/13/09 10:24 PM, "Tommy Pham" <tommyhp2@yahoo.com> wrote: > >> --- On Sun, 9/13/09, Tom Worster <fsb@thefsb.org> wrote: >> >>> From: Tom Worster <fsb@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["SERVER_NAME"] or $_SERVER["HTTP_HOST"] ? > > 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.