Identify Visitor and User in Wordpress

Question

I am working on a wordpress plugin, and I need to change the menu name Login for My account when the user is logged in.

I also need to change the title of the page. I have tried using the filter below, but ends up changing all the links of the site.

add_filter('the_title', 'function_name');

and when changing the menu name, I found nothing about it, someone has some suggestion about something?

Thanks in advance...

THE CODE

Trying to add a shortcode to be used as above!

if ( !function_exists('custom_login_form') )
{
    function custom_login_form()
    {
        $args=array(
            "echo" => false,
            "label_log_in" => "Entrar",
            "remember"  => true,
        );
        if ( !is_user_logged_in() ){
            return wp_login_form($args);
        }else{
            return 'Logado em Minha conta! <br />' . wp_loginout('index.php');
        }
    }
}
add_shortcode('login_form', 'custom_login_form');

This works perfectly, I would now like to make the changes in the menu and the title of the page!

RESOLUTION

After many researches managed to find a solution to the problem, which by coincidence I had already tried and did not work at all.

Using the following filter.

add_filter('wp_nav_menu_items', 'function_name', 10, 2);
function func_name_wp_nav($items, $args){
    return $items;
}

Then you adding items according to the menu, which is usually LI it adds as last element, example.

$item .= "<li><a href='#'>Item 1</a></li>";

This worked perfectly for me! Any questions regarding the post, comment and I will try to answer in what you know.

Thank you...

Answer 1

You must be looking to use the function is_user_logged_in(), if the user is logged in the return value is true, otherwise it is phony.

if ( is_user_logged_in() ) {
    // Fazer algo quando esse usuário estiver logado
} else {
    // Fazer algo caso seja um visitante
}

On the second question, the function the_title should work, however if you prefer to use something else clean, use the_title_attribute, both have practically the same goal, however, the latter has one more parameter that is $post which makes it possible to specify the ID or object of a post, can obtain or change, by default the current post is searched.

To change the menu name, here (Changing Admin Menu Labels - Wordpress Development SE) have a solution that maybe works for you.