在PHP中发送原生 HTTP header头

通过header content-type设置页面编码为utf-8：

<?php
header('Content-Type: text/html; charset=utf-8');
?>

<?php

header('Content-Type: text/html; charset=utf-8');

通过header location设置页面跳转：

<?php
header('Location: https://www.dustit.me/');
?>

<?php

header('Location: https://www.dustit.me/');

页面缓存设置：

<?php
header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header("Expires: Sat, 26 Jul 1997 05:00:00 GMT"); // Date in the past
?>

<?php

header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1

header("Expires: Sat, 26 Jul 1997 05:00:00 GMT"); // Date in the past