PHP用CURL伪造来源IP与来源URL地址程序代码

<?php
ob_start();
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "http://www.*xx**x.cn/test/test2.php");
curl_setopt($ch, CURLOPT_HTTPHEADER, array('X-FORWARDED-FOR:1.1.1.1', 'CLIENT-IP:2.2.2.2')); //伪造IP
curl_setopt($ch, CURLOPT_REFERER, "https://www.111cn.net/ "); //伪造来源网址
curl_setopt($ch, CURLOPT_HEADER, 1);
curl_exec($ch);
curl_close($ch);

$out = ob_get_contents();
ob_clean();
echo $out;

?>

<?php
function getClientIp() {
if (!empty($_SERVER["HTTP_CLIENT_IP"]))
$ip = $_SERVER["HTTP_CLIENT_IP"];
else if (!empty($_SERVER["HTTP_X_FORWARDED_FOR"]))
$ip = $_SERVER["HTTP_X_FORWARDED_FOR"];
else if (!empty($_SERVER["REMOTE_ADDR"]))
$ip = $_SERVER["REMOTE_ADDR"];
else
$ip = "err";
return $ip;
}

echo "
IP: " . getClientIp() . " HTTP_CLIENT_IP-: " . $_SERVER["HTTP_CLIENT_IP"] . " HTTP_X_FORWARDED_FOR-: " . $_SERVER["HTTP_X_FORWARDED_FOR"] . " REMOTE_ADDR-: " . $_SERVER["REMOTE_ADDR"] . " ";
echo "
referer: " . $_SERVER["HTTP_REFERER"];
?>