How to get drupal webform module submitted value programmatically?

I want to get the Webform submitted value using Webform modul开发者_开发技巧e API.

How can I do that?

I've got these link regarding webform hooks

Working with the Webform API (version 3.x only)

that contain these links

http://drupalcode.org/project/webform.git/blob/HEAD:/webform_hooks.php

http://api.lullabot.com/file/contrib/webform/webform_hooks.php

Custom coding: Adding advanced validation or submit code - Investigate $form_state structure via print_r or dsm (devel module) and find your submitted data in mywebform_extra_submit_44 function.

Here is how I did it, the form was just an email address.

function mymodule_webform_submission_insert($node, $submission)
{
  $value = array_shift($submission->data);
  $value = array_shift($value['value']);
  //$value is now the first value entered (in the case of multi-entry fields) or only value entered
}

Both node and submission are stdClass objects.

(Done in drupal 6)