Ví dụ Tích hợp Proxy

<?php
// Cấu hình proxy cơ bản
$username = "account";
$password = "password";

$ch = curl_init("https://ipinfo.io");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_PROXY, "gw.kindproxy.com:12000");
curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_HTTP);
curl_setopt($ch, CURLOPT_PROXYUSERPWD, "$username:$password");

$response = curl_exec($ch);
if (curl_errno($ch)) {
    echo "cURL Error: " . curl_error($ch);
} else {
    echo $response;
}
curl_close($ch);
?>