急急~~~~~

Question

$filename = "aaa";
$androidapp = $filename.".apk";
echo $androidapp;
你上面写的没问题啊

Answer 1

header("Content-Type:application/apk");
  header('Content-Disposition:attachment;filename='.$filename);
  header('Content-Transfer-Encodeing: binary');
  readfile($filename.".apk");用手机浏览器下载的时候老是文件是aaa，没有.apk，是什么原因呀

Answer 2

 header('Content-Disposition:attachment;filename='.$filename.".apk");

Answer 3

你是
$androidapp = $filename.".apk";
又不是
$filename = $filename.".apk"