Combine PageRank with and without www

I have read somewhere that I can combine the PageRank for my site with and without www using php but I can't remember how, would you tell me how to achieve that using php and headers? I don't have access to the .htAccess file so I think php is my only choice.

Also, if I use php, will I put the script in every page or just the home page?

 

i saw it yesterday. Please search it in the last page.
if i find it, i'll post it here.

 

you can do that by simply redirecting non www. format to www. one or vice versa.

I do that using .htaccess; put this code in your .htaccess and wait for next update.

RewriteEngine On
RewriteCond %{HTTP_HOST} !^www
RewriteRule .? http://www.%{HTTP_HOST}%{REQUEST_URI} [R=301,L]

Code (markup):

 

how to change ii if you want without www. ?

 

PHP please