How do I convert users who put an email and username for a comment into registered users? [duplicate]

Question

I want to make all new commenters have a new account without them having to go through any registration process. That way if they use the same details again it will be stored as another comment they made.

I do not want to require them to "register" but instead register them automatically when they put their info into the comment form.

I'm using the default wordpress comment system without any plugins.

How can I make it so users are registered automatically when putting info into comment form to make a comment?

Answer 1

To achieve this, create a new page template and use this code in that file. Then, use your submit form to redirect the user after commenting to the new page.

$user_login = $_POST['user_login'];
$user_email = $_POST['user_email'];
$errors = register_new_user($user_login, $user_email);
if ( !is_wp_error($errors) ) {
    $redirect_to = !empty( $_POST['redirect_to'] ) ? $_POST['redirect_to'] : 'wp-login.php?checkemail=registered';
    wp_safe_redirect( $redirect_to );
    exit();
}

Note that user_login and user_email are the names of your form's input boxes. The passwords will be randomly generated and sent to user's email address.

Answer 2

Hook into comment_post and use wp_insert_user():

add_action('comment_post','wpse_255850_reg_user',10,2);
function wpse_255850_reg_user($comment_ID, $comment_approved) {
    if( 1 === $comment_approved ){
    $userdata = array(
    'user_login' =>  sanitize_user($_POST['username']),
    'user_email'   =>  sanitize_email($_POST['user_email']),
    'user_pass'  =>  NULL,
    'role'  => 'subscriber',
    'show_admin_bar_front'  => false
                );

    $user_id = wp_insert_user( $userdata ) ;

    // On success.
    if ( ! is_wp_error( $user_id ) ) {
       wp_redirect( get_permalink() ); exit;
    }

       } //end if
    } //end function

The $_POST values in this code should reflect those of your actual comment form, the ones here are just generic. And make sure you thoroughly sanitize and validate your user inputs.