Question

用php header() 实现文件下载，出现问题

代码如下
$file = fopen($file_path, "r");
Header("Content-type: application/octet-stream");
Header("Accept-Ranges:bytes");
Header("Accept-Length:".filesize($file_path));
Header("Content-Disposition:attachment;filename=".$file_name);
readfile("$filename");
fclose($file);
exit();
$file_path是文件的目录+文件名，例如../dir/a.jpg
下载下来的文件大小不正常，很小，打开后提示已损坏或是怎么样，这是什么样的问题啊，大神帮我~~~~~

Answer 1

$file=fopen('文件地址',"r");
$size=filesize('文件地址');
header("Content-Type: application/octet-stream");
header("Accept-Ranges: bytes");
header("Accept-Length: ".$size);
header("Content-Disposition: attachment; filename=文件名称");
echo fread($file, $size);
fclose($file);

Answer 2

header("Content-Type: application/force-download");
header("Content-Transfer-Encoding: binary");
header('Content-Type: application/zip');
header('Content-Disposition: attachment; filename='.$sava_name);
readfile($sava_name);
试下