学步园

/*
* 检测链接是否是SSL连接
* @return bool
*/
function is_SSL(){
if(!isset($_SERVER['HTTPS']))
return FALSE;
 if($_SERVER['HTTPS'] === 1){  //Apache
  return TRUE;
 }elseif($_SERVER['HTTPS'] === 'on'){ //IIS
  return TRUE;
 }elseif($_SERVER['SERVER_PORT'] == 443){ //其他
  return TRUE;
 }
 return FALSE;
}