一个程序下载的管理程序(三)_php基础

//后台程序sign.php源代码如下:
<?require("../opendata.php");?>
<?
if($action=="sign")
{
if($say==""||$title==""||$url==""||$size=="")
{
header("location:../message.php?message=资料不完整&redirect=download/download.php?page=0%26action=publish");
break;
} $say=htmlspecialchars($say);
$title=htmlspecialchars($title);
$say=str_replace(" "," ",$say);
$say=nl2br($say);
$now_time=getdate();
$ttime=$now_time["year"]."-".$now_time["mon"]."-".$now_time["mday"]." ".$now_time["hours"].":".$now_time["minutes"].":".$now_time["seconds"];
$str="insert into download (title,say,click,ttime,url,size,type) values ('".$title."','".$say."',0,'#".$ttime."#','".$url."','".$size."',".$type.")";
mysql_query($str,$cn);

header("location:download.php?page=0&action=show");
}
if($action=="download")
{
mysql_query("update download set click=click+1 where id=".$id,$cn);

?>
<?
header("Content-type: text/html");
if(header("location:$url"))
echo "error";
?>
<html>
<a href="<?=$url?>">如果你的浏览器没有弹出下载窗口,请点这里</a>

<a href="javascript:self.close()">关闭窗口</a>
 
</html>
<?}?>
<?if($action=="mail")
{
mail("khj99@163.net","该链接有问题,请更正","id=$id;程序名=$title;类别=$type","From:khj99@163.netnReply-To:khj99@163.netn");
header("location:download.php?action=show&type=$type");
}
?>