PHP and URL s

rulian

How can I pull variables out of the url path?

lets say I have as a url http://something.mypage.com/blah
i need $variable='something';

cbj4074

Well, what exactly are you trying to pull off the URL? The URL in your example doesnt have any GET parameters appended.

If the URL in the example was http://something.mypage.com/blah?variable=something

then

$variable = $_GET['variable'];

would pull the value off the URL. If you are looking instead to pull something like the directory name off the URL (in your example, "blah"), then that's different. Which is it?

MarkR

You can use path info, for example:

http://something.example.com/mypage.php/stuff/goes/here

Then $_SERVER['PATH_INFO'] would contain something like "/stuff/goes/here"

If you make your PHP scripts end in something other than .php (or have no file extension at all), you can get nice URLs this way.

Mark

Weedpacket

You can also use [man]parse_url[/man] and [man]parse_str[/man].

deezzer

$variable = 'something';

echo 'http://'.$variable. '.mypage.com/blah';

cbj4074

I finally understand what you're asking. Weedpacket's suggestion is exactly what you need. Here's the implementation if you're too lazy:

$url = 'http://something.mypage.com/blah';
$url_components = parse_url($url);
$host_components = explode('.', $url_components['host']);
$result = $host_components[0];
echo $result;

And yeah, your syntax is correct if you want to output it again for some reason:

echo 'http://' . $result . '.mypage.com/blah';

rulian

thank you all for your replies.
Let me be more clear,
if someone types in their URL space on the web browser
http://something.mywebsite.com/

I need to pull the something from http://something.mywebsite.com into a variable.
I cant get any server variables that would produce me the alias as a variable, or even as part of any info

Weedpacket

Do you mean you want to configure your web server for virtual hosting? That would have to be done at the web server, before PHP gets involved.