PHP
header("Content-type: text/html;charset=utf-8");
if(strlen($FileName)<=3){echo "下载失败：你所以下载的文件信息有误";return;}
$FileName=iconv("utf-8","gb2312",$FileName);//进行文件名格式转换,以防中文乱码
//开始判断路径
if(!is_null($FilePath)&&strlen($FilePath)>1){ if(substr($FilePath,1)=='/'){//判断是否为绝对路径 $FilePath=$_SERVER['DOCUMENT_ROOT'].$FilePath; }
if(substr($FilePath,-1)!="/"){//检查最后是否为 / 结尾 $FilePath=$FilePath.'/'; }
if(is_numeric(strpos($FilePath,":\"))){//检查是否为绝对路径 $FilePath=str_replace("/","\",$FilePath); }
}elseif(strlen($FilePath)==1&&$FilePath!="/"){ $FilePath=$FilePath."/"; }else{ $FilePath=""; }
if(!file_exists($FilePath.$FileName)){ echo"下载失败：所要下载的文件未找到";return; }
/*================================================
发送下载相关的头部信息
=================================================*/ header("Content-type: application/octet-stream"); header("Accept-Ranges: bytes");//按照字节大小返回 header("Accept-Length: $FileSize");//返回文件大小 header("Content-Disposition: attachment; filename=".$FileName);//这里客户端的弹出对话框，对应的文件名 /*================================================
开始下载相关
=================================================*/
$FileSize=filesize($FilePath.$FileName); $File=fopen($FilePath.$FileName,"r");//打开文件 $FileBuff=512; while($FileSize>=0){ $FileSize-=$FileBuff; echo fread($File,$FileBuff); } fclose($File);
}
?>