if (!empty($_SERVER['HTTP_CLIENT_IP'])) {
$ip = $_SERVER['HTTP_CLIENT_IP'];
} elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {//检查ip是从代{过}{滤}理传递过来的
$ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
} else {
$ip = $_SERVER['REMOTE_ADDR'];
}
return $ip;
<?php
echo
"请求头IP".
"<br/>Client_IP:".getenv('HTTP_CLIENT_IP').
"<br/>X_Forwarded_For(最右为真实IP):".getenv('HTTP_X_FORWARDED_FOR').
"<br/><hr>真实IP".
"<br/>REMOTE_ADDR:".getenv('REMOTE_ADDR').
"<br/>\$_SERVER['REMOTE_ADDR']:".$_SERVER['REMOTE_ADDR'];