function getonlineip(){//獲取用戶ip  if($_SERVER['HTTP_CLIENT_IP'])  {   $onlineip=$_SERVER['HTTP_CLIENT_IP']; //用戶IP  }  else if($_SERVER['HTTP_X_FORWARDED_FOR'])  {   $onlineip=$_SERVER['HTTP_X_FORWARDED_FOR']; //代理IP  }  else  {   $onlineip=$_SERVER['REMOTE_ADDR']; //服務器IP  }  return $onlineip;}function curPageURL()//獲取完整的url{  $pageURL = 'http';  if ($_SERVER["HTTPS"] == "on")  {   $pageURL .= "s";  }  $pageURL .= "://";  if ($_SERVER["SERVER_PORT"] != "80")  {   $pageURL .= $_SERVER["SERVER_NAME"] . ":" . $_SERVER["SERVER_PORT"] . $_SERVER["REQUEST_URI"];  }  else  {   $pageURL .= $_SERVER["SERVER_NAME"] . $_SERVER["REQUEST_URI"];  }  return $pageURL;}