Intercept the "lost password" action by first redirecting to an existing instructions page

Question

We have a situation where the users (children) keep not forgetting their password but making trivial mistakes while trying to login.
As per question they should be first redirected to page e.g. id=5 with instructions like:

Please go back and:
Activate your cookies
Check if the correct language is on your keyboard
Ask your mother to log you in
etc...
If none of the above works please click here (http://oursite.com/wp-login.php?action=lostpassword) to ask for a new password

So, the lostpassword link on the login page should redirect to the existing page with the custom message/instructions and then, the link on the page to the actual lostpassword link.

PS: I believe that the lately introduced lostpassword_post hook could be useful.

Answer 1

This is straightforward.

1. Hook on init to detect the lostpassword page

2. If the user is not coming from your instructions page (which we defined by adding extra query parameter) he'll be redirected to your custom page

3. In your custom page add the link to lost password page including the extra parameter we set to skip the redirection.

   add_action( 'init', 'lostpassword_instructions' );
   
   function lostpassword_instructions() {
   
   
       global $pagenow;
   
       if ( $pagenow == 'wp-login.php' && 
           isset( $_REQUEST[ 'action' ] ) && 
           $_REQUEST[ 'action' ] == 'lostpassword' && 
           ! isset( $_REQUEST[ 'skip' ] )
       ) {
   
           exit( wp_redirect( 'http://domain.com/lost-password-instructions' ) );
   
       }
   
   }
   

Now on your custom page, something like that should work:

$url = 'http://domain.com/wp-login.php?action=lostpassword&skip=true';

Answer 2

the action login_form_lostpassword is called before the lost password page. try this :

add_action("login_form_lostpassword", function () {

    echo "on the lostpassword page";
    exit();

});

instead of the echo, redirect to your instructions page