php 下载文件header

Question

header( "Cache-Control: public" );
header( "Pragma: public" );
header("Content-type:application/vnd.ms-excel");
header("Content-Disposition:attachment;filename=".$name.".xlsx");
header('Content-Type:APPLICATION/OCTET-STREAM');
谁能给通俗的讲解一下这些参数的作用吗?谢谢了

Answer 1

Headers