thinkphp判断pc还是手机端访问不同模块

应用场景，当一个网站，需要区分pc用户还是手机用户访问不同模块时，可以使用如下方法：

在入口文件index.php里面加个判断

<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2019 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
// [ 应用入口文件 ]
namespace think;
require __DIR__ . '/../vendor/autoload.php';
// 执行HTTP应用并响应
$http = (new App())->http;
if(isMobile()){
  $response = $http->run();
}else{
  $response = $http->name('manage')->run();
}
$response->send();
$http->end($response);

function isMobile()
{
  if (isset($_SERVER['HTTP_X_WAP_PROFILE'])) {
    return true;
}
if (isset($_SERVER['HTTP_VIA'])) {
    return stristr($_SERVER['HTTP_VIA'], "wap") ? true : false;
}
if (isset($_SERVER['HTTP_USER_AGENT'])) {
    $clientkeywords = array('nokia', 'sony', 'ericsson', 'mot', 'samsung', 'htc', 'sgh', 'lg', 'sharp', 'sie-', 'philips', 'panasonic', 'alcatel', 'lenovo', 'iphone', 'ipod', 'blackberry', 'meizu', 
    'android', 'netfront', 'symbian', 'ucweb', 'windowsce', 'palm', 'operamini', 'operamobi', 'openwave', 'nexusone', 'cldc', 'midp', 'wap', 'mobile');
    if (preg_match("/(" . implode('|', $clientkeywords) . ")/i", strtolower($_SERVER['HTTP_USER_AGENT']))) {
        return true;
    }
}
if (isset($_SERVER['HTTP_ACCEPT'])) {
    if ((strpos($_SERVER['HTTP_ACCEPT'], 'vnd.wap.wml') !== false) && (strpos($_SERVER['HTTP_ACCEPT'], 'textml') === false || (strpos($_SERVER['HTTP_ACCEPT'], 'vnd.wap.wml') < strpos($_SERVER['HTTP_ACCEPT'], 
    'textml')))) {
        return true;
    }
}
return false;
}