Basically what I want is to remove most of the admin menu and replace it with my own, without using a plugin. But I'd also like it to stay after a wp update.
Is this a possibility and if so, how? Or is it just a million times easier to make the plugin and be done with it?
EDIT
In /wp-admin there is a menu on the left side. I won't be needing most of the menu and therefor don't want others to see or edit stuff in there(because the only thing that will happen is it will break the site). So I want to remove the unnecesary menu items and add relevant menu items. (It's about Posts, Pages, Media etc)
As others already mentioned you could use the function remove_menu_page
, but you still have to put this code somewhere.
If you really don't want to create a plugin you could add this code to the functions.php
file of your theme.
In my opinion it's not theme related code, so it would be better to put it in a custom plugin. And it's really easy, here's a video on how to create one within minutes: https://www.youtube.com/watch?v=S9Nhb1KX7vM
In your case it would look something like:
<?php
/*
Plugin Name: Custom Admin Menu
Version: 1.0.0
Description: My Custom Admin Menu
Author: Peter van der Net
*/
if (!function_exists('my_custom_admin_menu')):
function my_custom_admin_menu(){
remove_menu_page('index.php');
remove_menu_page('plugins.php');
remove_menu_page('users.php');
// etcetera..
}
add_action('admin_menu', 'my_custom_admin_menu');
endif;
/*?>*/
Put this code in a file named custom-admin-menu.php
in the folder wp-content/plugins
. And then activate the plugin.