function hook_user

6.x core.php hook_user($op, &$edit, &$account, $category = NULL)

Act on user account actions.

This hook allows modules to react when operations are performed on user accounts.

Parameters

$op: What kind of action is being performed. Possible values (in alphabetical order):

  • after_update: The user object has been updated and changed. Use this (probably along with 'insert') if you want to reuse some information from the user object.
  • categories: A set of user information categories is requested.
  • delete: The user account is being deleted. The module should remove its custom additions to the user object from the database.
  • form: The user account edit form is about to be displayed. The module should present the form elements it wishes to inject into the form.
  • insert: The user account is being added. The module should save its custom additions to the user object into the database and set the saved fields to NULL in $edit.
  • load: The user account is being loaded. The module may respond to this and insert additional information into the user object.
  • login: The user just logged in.
  • logout: The user just logged out.
  • register: The user account registration form is about to be displayed. The module should present the form elements it wishes to inject into the form.
  • submit: Modify the account before it gets saved.
  • update: The user account is being changed. The module should save its custom additions to the user object into the database and set the saved fields to NULL in $edit.
  • validate: The user account is about to be modified. The module should validate its custom additions to the user object, registering errors as necessary.
  • view: The user's account information is being displayed. The module should format its custom additions for display, and add them to the $account->content array.

$edit: The array of form values submitted by the user.

$account: The user object on which the operation is being performed.

$category: The active category of user information being edited.

Return value

This varies depending on the operation.

  • categories: An array of associative arrays representing the categories added by the implementing module. Each array can have the following keys:

    • name: The internal name of the category.
    • title: The human-readable, localized name of the category.
    • weight: An integer specifying the category's sort ordering.
    • access callback: Name of a menu access callback function to use when editing this category. Defaults to using user_edit_access() if not specified. See hook_menu() for more information on menu access callbacks.
    • access arguments: Arguments for the access callback function. Defaults to array(1) if not specified.
  • delete: None.
  • form, register: An array containing the form elements to add to the form.
  • insert: None.
  • load: None.
  • login: None.
  • logout: None.
  • submit: None.
  • update: None.
  • validate: None.
  • view: None.

Related topics

20 functions implement hook_user()

Note: this list is generated by pattern matching, so it may include some functions that are not actually implementations of this hook.

block_user in drupal-6.x/modules/block/block.module
Implementation of hook_user().
blogapi_validate_user in drupal-6.x/modules/blogapi/blogapi.module
Ensure that the given user has permission to edit a blog.
blog_feed_user in drupal-6.x/modules/blog/blog.pages.inc
Menu callback; displays an RSS feed containing recent blog entries of a given user.
blog_page_user in drupal-6.x/modules/blog/blog.pages.inc
Menu callback; displays a Drupal page containing recent blog entries of a given user.
blog_user in drupal-6.x/modules/blog/blog.module
Implementation of hook_user().

... See full list

File

documentation-6.x/developer/hooks/core.php, line 2438
These are the hooks that are invoked by the Drupal core.

Code

function hook_user($op, &$edit, &$account, $category = NULL) {
  if ($op == 'form' && $category == 'account') {
    $form['comment_settings'] = array(
      '#type' => 'fieldset',
      '#title' => t('Comment settings'),
      '#collapsible' => TRUE,
      '#weight' => 4);
    $form['comment_settings']['signature'] = array(
      '#type' => 'textarea',
      '#title' => t('Signature'),
      '#default_value' => $edit['signature'],
      '#description' => t('Your signature will be publicly displayed at the end of your comments.'));
    return $form;
  }
}