Function and usage of default_password_nag_edit_user() in wordpress


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    The default_password_nag_edit_user() function in WordPress is a part of the internal mechanism that reminds users to change their passwords. This function is typically used in conjunction with user profile edit operations. Let's break down its usage and parameters:


    • Name: default_password_nag_edit_user
    • Purpose: This function checks if the password of a user should be updated and sets the password change nag if necessary. It's usually triggered when a user's profile is edited.


    1. $user_ID (int, required):

      • Description: This is the user ID of the user whose profile is being edited.
      • Role: It's used to identify the specific user account in the WordPress database.
      • Example: If you're editing the profile of a user with ID 5, then $user_ID would be 5.
    2. $old_data (WP_User, required):

      • Description: This is an object of the WP_User class, representing the user data before the edit.
      • Role: It provides context to the function about the user's previous state. This is crucial for determining whether the password change nag should be triggered.
      • Example: Suppose the user's previous role was 'subscriber', and it's being changed to 'editor'. The $old_data object would contain all the details of the user, including their previous role as 'subscriber'.

    Sample Usage:

    Let's consider a scenario where you are editing a user's profile, perhaps changing their role or updating other details. Here's how default_password_nag_edit_user() might be used:

    $user_ID = 5; // Assuming we're editing the user with ID 5
    $old_data = get_userdata($user_ID); // Fetch the current user data before making changes
    // Perform your user edit operations here
    // For example, changing the user role, updating email, etc.
    // After editing the user, check if a password change is recommended
    default_password_nag_edit_user($user_ID, $old_data);

    In this example:

    • We fetch the current user data for the user with ID 5.
    • Perform some edit operations on the user's profile.
    • Finally, we call default_password_nag_edit_user() with the user's ID and their old data to check if a password change should be recommended post-edit.

    Important Notes:

    • This function is usually handled internally by WordPress during user profile edits. It's less common for theme or plugin developers to use it directly.
    • It's part of WordPress's efforts to enhance security by encouraging users to update their passwords regularly, especially after significant profile changes.

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