请教一个php实现下载的问题

Question

可以实现的,用header,不过我不记得代码了,回头再给你

Answer 1

先根据id得以$filename
// 输入文件标签
Header("Content-type: application/octet-stream");
Header("Accept-Ranges: bytes");
Header("Accept-Length: ".filesize($filename));
Header("Content-Disposition: attachment; filename=$filename");
// 输出文件内容
$fp = fopen($filename, "rb");
echo fread($fp,filesize($filename));
fclose($fp);
exit();

Answer 2

<?
可以试一下以下代码，IE 和NetScape下均可
次数可以用另数一变量保存到据库或文件中
$name=trim(basename($strFullPath));
header("Expires: " . gmdate("D, d M Y H:i:s",time()+24*3600) . " GMT");
header("Cache-Control:");
header("Pragma: cache");
header("Connection: close"); if(strpos(getenv("HTTP_USER_AGENT") , "MSIE")){
header("Content-type: application/download");
header("Content-Disposition: filename=$name");
header("Cache-Control: store, cache, must-revalidate, post-check=0, pre-check=0");
header("Keep-Alive: close");
}
else
{
header("Cache-Control: store, cache, must-revalidate, post-check=0, pre-check=0");
header("Content-type: application/octet-stream");
header("Content-Disposition: attachment;filename=$name");
}
}$fp=fopen($strFullPath,"rb");
fpassthru($fp);
flush();
exit;
?>