wp_redirect not working on plugin

Question

<?php
/*
Plugin Name: Héroes y Pasta
*/
    include_once(ABSPATH . 'wp-admin/includes/plugin.php');
    function iniciatodo() {
        if(is_user_logged_in()) {
?>
            <p>Hola tio</p>
<?php
        } else {
            wp_redirect( "http://gexy.es.cx/login/" );
            exit();
        }
    }
    add_shortcode("inicia_todo", "iniciatodo");
?>

So I'm making a pluging that has to work different if the user is logged in or not, but when the user is not logged it should redirect to the login page. What is wrong with the code or what does it lacks?

Thank you in advance

Answer 1

You can also consider a Javascript solution by adding a portion of code that will redirect people to the page if not loggued in :

<?php
/*
Plugin Name: Héroes y Pasta
*/
    include_once(ABSPATH . 'wp-admin/includes/plugin.php');
    function iniciatodo() {
        if(is_user_logged_in()) {
?>
            <p>Hola tio</p>
<?php
        } else { ?>
            <script>window.location.href = 'http://gexy.es.cx/login/';</script>
       <?php }
    }
    add_shortcode("inicia_todo", "iniciatodo");