Remove domain: What do think of this approach?

[Micky Hulse <micky@xxxxxxxxxxxxx>]

Hi folks, I hope everyone is having a good week. :)

Let me cut to the chase... Basically, I need to get this:

http://www.site.com/folder/foo

To work like this:

$_SERVER['DOCUMENT_ROOT'].'folder/foo/file.ext';

For use with getimagesize() and a few other functions (trying to avoid 
possible open_basedir restrictions.) Here is what I got so far:

# Determine http type:
$http_s = ($_SERVER['HTTPS'] == on) ? 'https://' : 'http://';
# Get root path:
$from_root = str_replace($http_s.$_SERVER['SERVER_NAME'], '', 
http://www.site.com/folder/foo);
echo
$_SERVER['DOCUMENT_ROOT'].$from_root;
/*
** Output:
** /web1/httpd/htdocs/blogs/images/uploads
*/

So, do you think I can rely upon the above script? I have a feeling the 
answer will be no.... Or, anyone have any tips/improvements?

Thanks!
Cheers,
Micky


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