1. Go to this page and download the library: Download axy/evil 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/ */
Evil::breakpoint('point'); // point
Evil::breakpoint('point', true); // 15: point
Evil::breakpoint('point', true, true); // /path/to/script.php:15: point