In fact I have found (and should have posted sooner) that the php-extensions were not complete because the make had failed to complete successfully with regard to php sessions, [font="Courier New"]session_start()[/font], et al? I have installed [font="Courier New"]WebCalendar[/font] on a FreeBSD v7.2 box and all seems well. As soon as the mail server is working on the v7.2 box, I am going to upgrade the v4.8 box.
BTW, you can include [font="Courier New"]phpinfo()[/font] anywhere for test purposes . . .it will insert itself after and before anything that follows. The [font="Courier New"]testdb.php[/font] thing is just a proof-of-concept thing that I cobbled up