Adding Users
To add a user you can use wp_create_user() or wp_insert_user().
wp_create_user() creates a user using only the username, password and email parameters while wp_insert_user() accepts an array or object describing the user and its properties.
Create User
wp_create_user() allows you to create a new WordPress user.
It uses wp_slash() to escape the values. The PHP compact() function to create an array with these values. The wp_insert_user() to perform the insert operation.
Please refer to the Function Reference about wp_create_user() for full explanation about the used parameters.
Example Create
// check if the username is taken $user_id = username_exists( $user_name ); // check that the email address does not belong to a registered user if ( ! $user_id && email_exists( $user_email ) === false ) { // create a random password $random_password = wp_generate_password( 12, false ); // create the user $user_id = wp_create_user( $user_name, $random_password, $user_email ); }Insert User
wp_insert_user( $userdata );The function calls a filter for most predefined properties.
The function performs the action user_register when creating a user (user ID does not exist).
The function performs the action profile_update when updating the user (user ID exists).
Please refer to the Function Reference about wp_insert_user() for full explanation about the used parameters.
Example Insert
Below is an example showing how to insert a new user with the website profile field filled in.
$username = $_POST['username']; $password = $_POST['password']; $website = $_POST['website']; $user_data = [ 'user_login' => $username, 'user_pass' => $password, 'user_url' => $website, ]; $user_id = wp_insert_user( $user_data ); // success if ( ! is_wp_error( $user_id ) ) { echo 'User created: ' . $user_id; }Updating Users
wp_update_user() Updates a single user in the database. The update data is passed along in the $userdata array/object.
To update a single piece of user meta data, use update_user_meta() instead. To create a new user, use wp_insert_user() instead.
If current user’s password is being updated, then the cookies will be cleared!
Please refer to the Function Reference about wp_update_user() for full explanation about the used parameters.
Example Update
Below is an example showing how to update a user’s website profile field.
$user_id = 1; $website = 'https://wordpress.org'; $user_id = wp_update_user( array( 'ID' => $user_id, 'user_url' => $website, ) ); if ( is_wp_error( $user_id ) ) { // error } else { // success }Deleting Users
wp_delete_user() deletes the user and optionally reassign associated entities to another user ID.
The function performs the action
deleted_user after the user have been deleted.If the $reassign parameter is not set to a valid user ID, then all entities belonging to the deleted user will be deleted!
Please refer to the Function Reference about wp_delete_user() for full explanation about the used parameters.