header函数运用

header("Location: http://www.example.com/");[/code] 
２．设置编码

header("Content-type:text/html;charset=utf-8");


３.下载等等

<?php
// We'll be outputting a PDF
header('Content-type: application/pdf');

// It will be called downloaded.pdf
header('Content-Disposition: attachment; filename="downloaded.pdf"');

// The PDF source is in original.pdf
readfile('original.pdf');


４　可以设置很多http 头

header("Cache-Control: no-cache");
header("Pragma: no-cache");