<?php

$userAgent = $_SERVER['HTTP_USER_AGENT']; //获取浏览器信息

if (!strpos($userAgent, 'MicroMessenger')) {

        echo  '这里是微信外面';
}else if(strpos(strtolower($userAgent), 'android')||strpos($userAgent, 'adr')){

header('Content-type: application/vnd.ms-word;charset=utf-8');
header('Content-Disposition:attachment; filename="/Content/1.docx"');

}else {

echo  '这里是苹果';

}