如何在Drupal Webform上使用$ _SESSION？

Question

I'm using Drupal 7 and Webform module. And I want show to users, input's previous text. How can I use session on Drupal?

Answer 1

Here you can use 2 hooks

1. hook_form_FORM_ID_alter(&$form, &$form_state, $form_id)
2. hook_webform_submission_insert($node, $submission)

In hook_webform_submission_insert you set session, and in hook_form_FORM_ID_alter set field default value from session.

Cheers!!!