How to find the current user in Wordpress ?

Question

I am trying to get the current user in WordPress. My code is in below:

<?php
    include('/wp-admin/includes/user.php');
    $current_user = wp_get_current_user(); 
    echo 'Username: ' . $current_user->user_login;
?>

but I get the following error:

Fatal error: Call to undefined function wp_get_current_user() in /membri/mysite/wordpress/getUser.php on line 3

How can I resolve it?

Answer 1

In your functions.php, you can do this:

function my_theme_get_user_id() {
    global $current_user;

    echo 'The current logged in user ID is: ' . $current_user->ID;
}

then, use an action hook or a filter to use it were needed.

In your theme, under the wp-content/themes/ directory, you can simply do this directly in any of your files for view:

global $current_user;
echo 'The current logged in user ID is: ' . $current_user->ID;