php 获得当前的文件全网址

获得当前的脚本网址

function GetCurUrl()
{
 if(!empty($_SERVER["REQUEST_URI"]))
 {
  $scriptName = $_SERVER["REQUEST_URI"];
  $nowurl = $scriptName;
 }
 else
 {
  $scriptName = $_SERVER["PHP_SELF"];
  if(empty($_SERVER["QUERY_STRING"]))
  {
   $nowurl = $scriptName;
  }
  else
  {
   $nowurl = $scriptName."?".$_SERVER["QUERY_STRING"];
  }
 }
 return $nowurl;
}