Hosting Multiple Domains at one IP

ph8edsicness

I'm looking to switch from ASP to PHP. I am about to buy some hostspace and in an attempt to save money I intend to host multiple sites on a single IP. I would like domain1 to point to SITE1 and domain2 to point to SITE2. I found an ASP way of doing this here:

http://www.4guysfromrolla.com/webtech/072700-1.shtml

I would appreciate it greatly if someone knows how, and would help me to do the same thing that the article describes using PHP or UNIX friendly coding.

Thanks,
Ryan

theslinky

Hmm, you can make a gateway or index PHP which will find the URL trying to be accessed and redirect to a part of the site.

To do this, get the headers:

$headers = getallheaders();

Then find out the domain as entered by the user:

$domain = $headers["Host"];

Now run a conditional or switch to load the content:

switch($domain) {
case "domain1.com":
Show_SITE1();
break;
case "domain2.com":
Show_SITE2();
break;
}

Of course you can set a cookie or global var indicating what domain it is in so that all the functions of the PHP can check this variable to see which content to load.

-sridhar

ph8edsicness

Hmm... I'm still real new to PHP so maybe a little more help? If you don't mind.

Domain 1: ph8web.com
Domain 2: magiceyedesign.com

Let's say on my host space, in the root folder i have these two folders.

/ph8web
/magiceye

How would I get the PHP to link to /ph8web or /magiceye depending on the domainname the surfer typed in?

ph8edsicness

I assume just put the url inside the Show_SITE() command?

theslinky

Hi,

I've been in the coding forum for a while, so just checked here now!

Yep, make your Show_SITE functions redirect.
Or you can do it in the select statements as well:

$headers = getallheaders();
$domain = $headers["Host"];

switch($domain) {
case "www.ph8web.com":
Header("Location: /ph8web");
break;
case "www.magiceyedesign.com":
Header("Location: /magiceye");
break;
}

-sridhar

ph8edsicness

Thanks a lot! I appreciate your time and help. Take care.

Sincerely,
Ryan

ph8edsicness

what if some users type in the domain without the www?

some type it with and some don't. Does that pose a problem at all?

www.ph8web.com or ph8web.com

same with the other.
Do I have to add more case functions or can you put both ways of entering the address into each one?

slug58

yes you can add more cases to the switch or you could do this:

$headers = getallheaders();
$domain = $headers["Host"];

switch($domain) {
case "www.ph8web.com":
case "ph8web.com":
Header("Location: /ph8web");
break;
case "www.magiceyedesign.com":
case "magiceyedesign.com":
Header("Location: /magiceye");
break;
}

hope this helps!!

slug58

you can do this too:

$headers = getallheaders();
$domain = $headers["Host"];

switch($domain) {
case "www.ph8web.com":
case "ph8web.com":
Header("Location: /ph8web");
break;
case "www.magiceyedesign.com":
case "magiceyedesign.com":
Header("Location: /magiceye");
break;
default:
Header("Location: /magiceye");
}

in case they input your IP address or something else that points to your IP address that you haven't account for in your cases.

good luck!

ph8edsicness

Thanks man. I appreciate all the help I've been getting.