php header函数几种作用

1、跳转

header("location:url");

 

2、控制浏览器不缓存

 

header("Pragma: no-cache");
header("Expires: 0");

 

3、生成doc文档

 

<?php header("Content-Type: application/msword"); header("Content-Disposition: attachment; filename=aa.doc"); header("Pragma: no-cache"); header("Expires: 0"); echo "doctest"; ?>