How to Disable or Hide WordPress Admin Bar

Disable Admin Bar for All Users

If you want to disable it for all users, then simply put use this code in your theme’s functions.php file or your theme in wp-content.

  show_admin_bar(false);

you can also create this

  add_filter('show_admin_bar', '__return_false');

Disable Admin Bar for All Users Except for Administrators

add_action('after_setup_theme', 'remove_admin_bar');
function remove_admin_bar() {
if (!current_user_can('administrator') && !is_admin()) {
  show_admin_bar(false);
}
}

This code will stop the toolbar from displaying on the front-end of your site.

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Membuat CMS Wordpress menjadi WordPress Multisite Network

English
A WordPress multisite network Allows you to run and manage multiple WordPress sites from a single WordPress installation. Just like I could Dot Com makes Multisite from blog.sayabisa.com. Actually, at the time of installation can be directly checked multisite if the initial intention to create a website with WordPress multisite, but there were already make single and want to upgrade to multisite.
There are 2 options in making this multisite, namely:

blog.sayabisa.com = subdomains
sayabisa.com/blog = sub-directories
Immediately, step by step:
1. create additional wp_config.php
define ( 'WP_ALLOW_MULTISITE', true);

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