Making a database connection persists in PHP

[Mary Anderson <maryfran(at)demog(dot)berkeley(dot)edu>]

Hi all,
   Don't know if this should go to the PHP group or the postgresql group

   I am writing a PHP-postgres application.  I would like to have a 
database connection persists across php pages.  What the application 
does at present is to create a new connection every time a new page is 
called.  Can I put a connection into a session variable?

   Thanks

Mary Anderson