Mikhail Miguel wrote:
OBS:
IS JUST AN EXPERIMENTAL HACK,
IT IS NOT THE IDEAL WAY TO DO A "XOOPS MULTISITE".

database.php

function prefix($tablename='') {
if ( $tablename == '' ) {
return $this->prefix;
}
elseif ( $tablename == 'users' ) {
return 'same_users';
}
elseif ( $tablename == 'groups_users_link' ) {
return 'same_groups_users_link';
}
elseif ( $tablename == 'priv_msgs' ) {
return 'same_priv_msgs';
}
elseif ( $tablename == 'session' ) {
return 'same_session';
}
else {
return $this->prefix .'_'. $tablename;
}
}

to use the same files with diferent sites/subdomains, just replace the mainfile.php for:

if (!(isset($subdominio))) {
$subdominio = $HTTP_HOST;
$subdominio = str_replace("www.","",$subdominio); 
$subdominio = str_replace(".com","",$subdominio); 
$subdominio = str_replace(".net","",$subdominio); 
$subdominio = str_replace(".org","",$subdominio);
} 

if (!(empty($subdominio))) {
include($subdominio."mainfile.php");
}
?>