Retrieve data from different database

[petteyg359]

I attempted the directions on https://vborg.vbsupport.ru/showthrea...ight=select_db, and put

PHP Code:

$DB_site->select_db(dysplace_eveit); 


into my custom php file. I get the error

Fatal error: Call to a member function select_db() on a non-object in /home/dysplace/public_html/eve-ocf/eveit.php on line 50

What might cause the error? The page works pefectly when I remove the select_db line (except of course that there's no way then to retrieve the data other than using regular MySQL PHP code).