actual_link = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? "https" : "http") . "://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
$url .= $url.(parse_url($url, PHP_URL_QUERY) ? '&' : '?').'category=action';
<?php
echo 'Bonjour ' . htmlspecialchars($_GET["name"]) . '!';
?>