Showing Current Loged in User information

To determine the current user info:

<?php
$current_user =wp_get_current_user();
echo "Welcome".$current_user->user_login;
echo 'User email: ' . $current_user->user_email;
echo 'User first name: ' . $current_user->user_firstname;
echo 'User last name: ' . $current_user->user_lastname;
echo 'User display name: ' . $current_user->display_name;
echo 'User ID: ' . $current_user->ID ;
?>