php获取当前URL地址例子

$URL['PHP_SELF'] = isset($_SERVER['PHP_SELF']) ? $_SERVER['PHP_SELF'] : (isset($_SERVER['SCRIPT_NAME']) ? $_SERVER['SCRIPT_NAME'] : $_SERVER['ORIG_PATH_INFO']);   //当前页面名称

$URL['DOMAIN'] = $_SERVER['SERVER_NAME'];  //域名(主机名)

$URL['QUERY_STRING'] = $_SERVER['QUERY_STRING'];   //URL 参数

$URL['URI'] = $URL['PHP_SELF'].($URL['QUERY_STRING'] ? "?".$URL['QUERY_STRING'] : "");

$URL['URL'] = "http://".$URL['DOMAIN'].$URL['PHP_SELF'].($URL['QUERY_STRING'] ? "?".$URL['QUERY_STRING'] : ""); //完整URL地址

function getIps() //获取用户IP
{
if(getenv('HTTP_CLIENT_IP') && strcasecmp(getenv('HTTP_CLIENT_IP'), 'unknown'))
{
$IP = getenv('HTTP_CLIENT_IP');
} elseif(getenv('HTTP_X_FORWARDED_FOR') && strcasecmp(getenv('HTTP_X_FORWARDED_FOR'), 'unknown')) {
$IP = getenv('HTTP_X_FORWARDED_FOR');
} elseif(getenv('REMOTE_ADDR') && strcasecmp(getenv('REMOTE_ADDR'), 'unknown')) {
$IP = getenv('REMOTE_ADDR');
} elseif(isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], 'unknown')) {
$IP = $_SERVER['REMOTE_ADDR'];
}
return $IP ? $IP : "unknow";
}