1. Go to this page and download the library: Download madaritech/wp-oop-nonces library. Choose the download type require.
2. Extract the ZIP file and open the index.php.
3. Add this code to the index.php.
<?php
require_once('vendor/autoload.php');
/* Start to develop here. Best regards https://php-download.com/ */
madaritech / wp-oop-nonces example snippets
$generator = new Nonce_Generator( 'action_parameter' );
$nonce = $generator->generate_nonce();
$url_generator = new Nonce_Url_Generator( 'action_parameter' );