If User Logged in then show something and show another

WordPress Login Logout Condition in Menu

//Add This Code Function.php

function add_loginout_link( $items, $args ) {
    if (is_user_logged_in() && $args->theme_location == 'primary_menu') {
        $items .= '<li><a href="'. wp_logout_url() .'">Log Out</a></li>';
    }
    elseif (!is_user_logged_in() && $args->theme_location == 'primary_menu') {
        $items .= '<li><a href="'. site_url('wp-login.php') .'">Log In</a></li>';
    }
    return $items;
}
add_filter( 'wp_nav_menu_items', 'add_loginout_link', 10, 2 );



==================


if ( is_user_logged_in() ) {
   // your code for logged in user 
} else {
   // your code for logged out user 
}