在WordPress自定义登录页面登录后重定向回帖子

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In my WordPress v5.8.2, I have a custom login page http://www.....com/login .

Site allows only logged in users to post comments and below redirect URL link is published on the comments section for user to login:

http://www......com/login/?redirect_to=http://www......com/post-name

I am trying to redirect back to the post after login with below function:

function redirect_to_posts_after_login($redirect_to, $requested_redirect_to) {
    $redirect_to_post = $_GET['redirect_to'];
    if (!$redirect_to_post === "") {
        return $redirect_to_post;
    } else {
        return $requested_redirect_to;
    }
}

add_filter('login_redirect', 'redirect_to_posts_after_login', 10, 3);

However, it still redirects to wp-admin after the login. How can I make the redirect back to the post?

Answer 1

Since you are trying to redirect the user, to your desired custom URL after login. Then you should insert your custom URL here:-

    if ( isset( $user->roles ) && is_array( $user->roles ) ) {
            //check for admins
            if ( in_array( 'administrator', $user->roles ) ) {
                // redirect them to the default place
                return $redirect_to;
            } else {
                //you shud concatinate your custom url here
                return home_url();
            }
        } else {
            return $redirect_to;
        }

$redirect_to variable contains the URL to the wp-admin. But as a user apart from admin. You can insert the custom URL beside the home_url() function.(Concatinate your custom url in the form hard coded string)

Answer 2

With below changes, now I am able to return the user to the post after login.

Login URL at each post remained same as below with redirect_to :

http://www......com/login/?redirect_to=http://www......com/post-name

In my custom login page template login I am capturing the redirect_to value as a variable:

$redirect_back_to = $_GET['redirect_to'];

And then in the same custom login page I have this hidden input field that take the redirect_to as input value:

  <input type="hidden" value="<?php echo $redirect_back_to; ?>" name="redirect_to_post_url">

In the below function I am capturing the post referrer URL from the above input and checks if there is a referrer ( redirect_to ) it will redirect to the post else to wp-admin :

function redirect_to_posts_after_login($redirect_to) {
    $redirect_to_post = filter_input(INPUT_POST, 'redirect_to_post_url');

    if (!$redirect_to_post === "") {
        wp_redirect(esc_url($redirect_to_post));
    } else {
        return $redirect_to;
    }
}

add_filter('login_redirect', 'redirect_to_posts_after_login', 10, 1);

Answer 3

!$redirect_to_post === "" will always return false !

can you try with this code?

function redirect_to_posts_after_login($redirect_to, $requested_redirect_to) {
    $redirect_to_post = $_GET['redirect_to'];
    if ($redirect_to_post !== "") {
        return $redirect_to_post;
    } else {
        return $requested_redirect_to;
    }
}

add_filter('login_redirect', 'redirect_to_posts_after_login', 10, 3);