I'm trying (and in fact it seems to work fine) to register a connection id to a postgres database :

/***********************************/
// the followig instruction works fine and $cnx_id
// gets a value (it is not null)
$cnx_id = pg_connect ("host= blah blah...");
session_register('cnx_id');
/***********************************/

And when I try "session_is_registered('cnx_id');", I get TRUE (even in another script, which is what I want), but unfortunately, $cnx_id is null in every other script... Does anybody know about this ?

NB : the very same code works fine if for example $cnx_id is a string ($cnx_id = "test";) instead of this database thing.