Function and usage of get_password_reset_key() in wordpress


Answers ( 1 )


    The get_password_reset_key() function in WordPress is designed to create and return a password reset key for a specified user. This function is a part of WordPress's user management and security features, allowing for the resetting of passwords in a secure manner. Here's a detailed explanation of this function:

    Function Signature:

    get_password_reset_key( WP_User $user ): string|WP_Error


    • $user (WP_User): This is a required parameter. You need to pass an instance of the WP_User class, representing the user for whom you want to retrieve the password reset key. The WP_User object typically contains all the necessary information about a user, such as their username, email, user ID, and other metadata.


    1. Creation of Key: The function generates a unique, random password reset key. This key is intended to be used only once and is associated specifically with the user account in question.

    2. Storing the Key: After generating the key, the function stores it in the WordPress database. This stored key is linked with the user's account and is used to validate the password reset request later.

    3. Return Value: The function returns the generated key as a string. This key is then typically used to create a password reset link that can be sent to the user's email address. If there is an error during any part of this process (such as if the user does not exist), the function will return a WP_Error object instead.


    • Success: If successful, the function returns a string, which is the password reset key.
    • Error: If there is an error (e.g., invalid user, database error), the function returns a WP_Error object.

    Sample Usage:

    Here's an example of how you might use get_password_reset_key():

    $user = get_user_by('email', ''); // Retrieve user by email
    if ( $user ) {
        $reset_key = get_password_reset_key($user);
        if ( !is_wp_error($reset_key) ) {
            // Do something with the $reset_key, like sending it in an email
        } else {
            // Handle error
            echo $reset_key->get_error_message();
    } else {
        echo "User not found";

    In this example, the function get_user_by() is used to retrieve the WP_User object for a specified email address. Then, get_password_reset_key() is called with this user object. If successful, the reset key is obtained and can be used to send a password reset link to the user; if there is an error, it is handled accordingly.

    This function is crucial for implementing custom password reset flows in WordPress, ensuring that users can securely reset their passwords when needed.

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