Drupal: How to Render Results of Form on Same Page as Form

Question

How would I print the results of a form submission on the same page as the form itself?

Relevant hook_menu:

    $items[\'admin/content/ncbi_subsites/         


        

Answer 1

Drupal6 node.module and dblog.module do this for admin/content/node and admin/reports/dblog by providing a page callback which includes the rendered form in its output.

modules/dblog/dblog.admin.inc
dblog_overview()

modules/node/node.admin.inc
node_admin_nodes()

In form submit, updated filter settings are stored in $_SESSION.

In the page callback it renders the results based on the filter settings stored in $_SESSION.

$_SESSION is just another global here (albeit a persistent one).