I have been using define to create a constant for the link resource returned by mysql
pconnect like so:

$PL = @mysql_pconnect("localhost", $DBUser, $DBPass);
define("SITE_DB",$PL);


Later I use the constant to select my databases.

mysql_select_db($SrcdbID ,SITE_DB);

This code seems to be working as I expected and I have many thousands of llines of code
done over several years using this construct.

But, I happened to be reading the php doco today and noticed that you are not supposed to
use define for resources, so question is, is what I am doing safe or am I going to run into
problems and if so what is the best way to globally pass resources to multiple classes and
functions, command line scripts etc?


Cheers
Charlie Reese