PHP基础之防盗链和禁用缓存

1.防盗链技术

//使用$_SERVER['HTTP_REFERER']
if(isset($_SERVER['HTTP_REFERER'])){
		if(strpos($_SERVER['HTTP_REFERER'],'http://php1.hd/http')==0){
			echo "账号详细信息";
		}else{
			header("Location: err.php");
		}
	}else{
		header("Location: err.php");
	}

2.禁用缓存设置