1. Go to this page and download the library: Download tekod/wp-queue 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/ */
tekod / wp-queue example snippets
$queue = WpQueue('mailer');
$queue->init([
'Storage' => new \Tekod\WpQueue\Storage\Wpdb($wpdb, 'wpqueue_mailer_jobs'),
]);