pp-wp-snippet-block-admin-access.php

<?php
// This code snippet blocks WordPress dashboard access for non admin users

// Add a custom function to check if the user is allowed to access the admin area
add_action( 'init', 'block_admin_access' );

function block_admin_access() {
  if ( is_admin() && ! current_user_can( 'administrator' ) && ! ( defined( 'DOING_AJAX' ) && DOING_AJAX ) ) {
    // Redirect to home page if a non admin user tries to access admin area 
    wp_redirect( home_url() );
    exit;
  }
}

?>