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In PHP, we can use the header function to send native HTTP headers, but how to send HTTP headers in WordPress?
Method 1: Write the code yourself
Put the following code into functions.php of the current theme:
/** * 在用户登陆的情况下,给前台所有页面添加不缓存的 Cache-Control 头 */ function ludou_http_headers() { // 判断用户是否登陆,并且是在非后台(前台)页面 if(is_user_logged_in() && !is_admin()) { // php的header函数发送HTTP 头 header('Cache-Control: no-store, no-cache, must-revalidate, max-age=0'); } } /* WordPress hook * 第一个参数值 wp 是action动作名称,文档:https://codex.wordpress.org/Plugin_API/Action_Reference/wp * 第二个参数值 ludou_http_headers 是上面的函数名称,自己取名 */ add_action( 'wp', 'ludou_http_headers' );
Method 2: Use plug-in
HTTP Headers: https://wordpress.org/plugins/http-headers/
HTTP headers to improve web site security: https: //wordpress.org/plugins/http-security/
Recommended study: "WordPress Tutorial"
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