How can I do a url redirect to include a wordpress username?

Question

I currently have a button like this, that takes a user to their 'mentions' page

<a href="http://my.url.org/mentions/<?php global $userdata;
get_currentuserinfo(); echo( $userdata->user_login );?>">button</a>

What I'd like instead is that a user can see their 'mentions' when they log in to the page. so I'd like admin to be redirected to http://my.url.org/mentions/admin when he goes to a particular page (i.e. the homepage) - I think this would be best using a PHP redirect?

How could I do this?

Answer 1

You have to add action to, for example, template_redirect action hook. The action would perform your desired checks and redirect user using the wp_redirect() function. The code could look something like this:

function my_redirect_function() {
    // Check if home page is being displayed
    if ( is_home() ) {
        global $userdata;
        get_currentuserinfo();
        $username = $userdata->user_login;
        $url = 'http://my.url.org/mentions/' . $username;

        wp_redirect( $url );
        exit;
    }
}
add_action( 'template_redirect', 'my_redirect_function' );

You place whatever checks (such as conditional tags) you'd like instead of is_home() check.