php获取客户端IP及URL的方法示例

function getonlineip(){//获取用户ip
  if($_server['http_client_ip'])
  {
   $onlineip=$_server['http_client_ip']; //用户ip
  }
  else if($_server['http_x_forwarded_for'])
  {
   $onlineip=$_server['http_x_forwarded_for']; //代理ip
  }
  else
  {
   $onlineip=$_server['remote_addr']; //服务器ip
  }
  return $onlineip;
}
function curpageurl()//获取完整的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;
}