nginx

1、使用nginx的rewrite方法

配置nginx.conf

server {
    listen 80;
    server_name  xxx.com;

    rewrite ^(.*)$   https://$host$1 permanent;

}

2、使用nginx的301状态码

server {
    listen 80;
    listen 443;
    server_name xxx.com;
    ssl   on;

    ssl_certificate    /data/www-key/xxx.pem;

    ssl_certificate_key    /data/www-key/xxx.key;

    if ($scheme = http) {
        return 301 https://$server_name$request_uri;
    }
}

PHP 代码

//方法一 https状态

if(!isset($_SERVER['HTTPS']) || $_SERVER['HTTPS'] == 'off'){
    Header("HTTP/1.1 301 Moved Permanently");
    header('Location: https://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']);
}

//方法二 判断端口

if($_SERVER['SERVER_PORT']=="80"){
    Header("HTTP/1.1 301 Moved Permanently");
    header('Location: https://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']);
}