Hide admin for NON-ADMIN users WordPress - Redirect non-admin users to home page

hide_admin.php

<?php

add_action( 'admin_init', 'redirect_non_admin_users' );

function redirect_non_admin_users() {
	if ( ! current_user_can( 'manage_options' ) && '/wp-admin/admin-ajax.php' != $_SERVER['PHP_SELF'] ) {
		wp_redirect( home_url() );
		exit;
	}
}