This hook can be used for modifying the URL that will be used to redirect the user after posting a message.

Call time:

In include/posting/action_post.php, after the redirect URL has been constructed and just before the user is redirected (back to the message list or read page.)

Hook input:

The redirect URL as the first argument and the message data as the second argument.

Hook output:

This hook must return the redirect URL to use.

Example code:

function phorum_mod_foo_after_post_redirect($url, $message)
{
    // For some reason, we find it interesting to redirect
    // the user to the Disney site after posting a message.
    return "http://www.disney.com/";
}