返回当前的URL

function current_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;
}