Nginx 傳遞真實IP

Nginx設定

外部IP經過Nginx處理後會變成Nginx的IP，使用$remote_addr紀錄使用者IP

location /{
           .....
           proxy_set_header X-Real-IP $remote_addr;
           proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}

PHP取得IP設定

if(!empty($_SERVER['HTTP_CLIENT_IP'])){
    $myip = $_SERVER['HTTP_CLIENT_IP'];
}else if(!empty($_SERVER['HTTP_X_FORWARDED_FOR'])){
    $myip = $_SERVER['HTTP_X_FORWARDED_FOR'];
}else{
    $myip= $_SERVER['REMOTE_ADDR'];
}