how to add custom link on wordpress admin sidebar

Question

How to add custom link on wordpress admin sidebar without using plugins? For example, i want to add "Google.com" link. How should i do this?

I tried this: Added next code to admin-bar.php

function mycustomlink() {
global $wp_admin_bar;
$wp_admin_bar->add_menu( array(
    'parent' => 'new-content',
    'id' => 'mycustomlinkId',
    'title' => __('Custom link'),
    'href' => admin_url( 'google.com'),
    'meta' => false 
));}

And added next code to class-wp-admin-bar.php

add_action( 'admin_bar_menu', 'mycustomlink', 900 );

but no results.

Answer 1

Add this to the bottom of your theme's function.php

    add_action( 'admin_menu', 'linked_url' );
    function linked_url() {
    add_menu_page( 'linked_url', 'External link', 'read', 'my_slug', '', 'dashicons-text', 1 );
    }

    add_action( 'admin_menu' , 'linkedurl_function' );
    function linkedurl_function() {
    global $menu;
    $menu[1][2] = "http://www.example.com";
    }