1. Go to this page and download the library: Download arcaptcha/arcaptcha-php 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/ */
arcaptcha / arcaptcha-php example snippets
use Mohammadv184\ArCaptcha\ArCaptcha;
$ArCaptcha = new ArCaptcha($siteKey, $secretKey);
// To set options like color,lang,...
$ArCaptcha = new ArCaptcha($siteKey, $secretKey,['lang'=>'en','theme'=>'dark']);