1. Go to this page and download the library: Download peterujah/email-crawl 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/ */
peterujah / email-crawl example snippets
$craw = new EmailCrawl("https://example.com", 200);