利用PHP实现与ASPBanner组件相似的类

BannerData)==0)
{
$this->BannerData=$this->ReadAdFile($adfile);
}
$AdData=$this->BannerData;
$uplimited=count($AdData);
//随机产生一个ID
srand((double)microtime()*1000000000000000000);

[email=$id=@rand(1,$uplimited]$id=@rand(1,$uplimited[/email]
);
while($this->RandTemp==$id)
{
srand((double)microtime()*1000000000000000000);
//$id=@rand(1,count($AdData));
[email=$id=@rand(1,$uplimited]$id=@rand(1,$uplimited[/email]
);
}
$this->RandTemp= $id;
//echo $id;
//echo count($AdData);
//echo $AdData[5]["image"];
$LinkString=" Redirect;
$LinkString.="?url=".$AdData[$id]["url"];
$LinkString.="" Target="".$this->Target;
$LinkString.="" Title="".$AdData[$id]["title"];
$LinkString.="" >";
$LinkString.=" Border;
$LinkString.="" src="".$AdData[$id]["image"];
$LinkString.="" width="".$this->Width;
$LinkString.="" height="".$this->Height;
$LinkString.="" >";
$LinkString.="";
//echo $LinkString;
return $LinkString;
}
/*
private
读入文件的基本设置
*/
function ReadAdFile( $adfile)
{
$FP=fopen($adfile,"r");
while(
[email=$buffer=@fgets]$buffer=@fgets[/email]
( $FP,1024))
{
if(!eregi("#",$buffer))
{
if(eregi("^*",$buffer))
{
$switchto="off";
}
$SetTemp=split("=",$buffer);
if($switchto=="")
{
switch ($SetTemp[0])
{
case "REDIRECT":
$this->Redirect=$SetTemp[1];
break;
case "WIDTH":
$this->WIDTH=$SetTemp[1];
break;
case "HEIGHT":
$this->HEIGHT=$SetTemp[1];
break;
case "BORDER":
$this->BORDER=$SetTemp[1];
break;
case "TARGET":
$this->Target=$SetTemp[1];
break;
}
}
else
{
switch ($SetTemp[0])
{
case "image":
$i ;
$BannerData[$i]["image"]=$SetTemp[1];
//echo "
";echo $buffer;echo $SetTemp[1];
//echo $BannerData[$i]["image"];
break;
case "url":
$BannerData[$i]["url"]=$SetTemp[1];
break;
case "title":
$BannerData[$i]["title"]=$SetTemp[1];
break;
case "rate":
$BannerData[$i]["rate"]=$SetTemp[1];
break;
}//end of switch
}//end of if($switch)
}//end of if(#)
}//end of while
return $BannerData;
}//end of function
}//end of class
/*
使用
[url=javascript:;]方法[/url]

广告设置文件书写格式banner.txt
------开始---
REDIRECT=./adredir.asp
WIDTH=468
HEIGHT=60
BORDER=0
*
#注释
#某某公司广告1
image=../banner/1.gif
url=http://www.asps0ite.com1
title=One
rate=30
----结束-----
说明：
与ASP的广告组件相仿
*表示设置,其他为图片的设置 #：表示注释
----使用-----
 $banner=new AdRotator();
echo $banner->GetAdvertisement("./banner.txt");
echo $banner->GetAdvertisement("./banner.txt");
echo $banner->GetAdvertisement("./banner.txt");
*/
?>
彷徨一小生