在文件 Controller\AppController.php 中找不到类

Question

您好，我尝试连接mongo DB(Version 3.4.18)使用CakePHP (version 3.5.1) with Apache server on PHP (7.2.4)，并提示以下错误：面对

 2019-07-01 10:41:09 Error: [Error] Class 'MongoClient' not found in E:\xampp\htdocs\myproject\src\Controller\AppController.php on line 142

Request URL: /

Stack Trace:

#0 E:\xampp\htdocs\myproject\src\Controller\PagesController.php(219): App\Controller\AppController->__connectmongodb()

#1 E:\xampp\htdocs\myproject\vendor\cakephp\cakephp\src\Controller\Controller.php(441): App\Controller\PagesController->home()

#2 E:\xampp\htdocs\myproject\vendor\cakephp\cakephp\src\Http\ActionDispatcher.php(119): Cake\Controller\Controller->invokeAction()

#3 E:\xampp\htdocs\myproject\vendor\cakephp\cakephp\src\Http\ActionDispatcher.php(93): Cake\Http\ActionDispatcher->_invoke(Object(App\Controller\PagesController))

#4 E:\xampp\htdocs\myproject\vendor\cakephp\cakephp\src\Http\BaseApplication.php(103): Cake\Http\ActionDispatcher->dispatch(Object(Cake\Http\ServerRequest), Object(Cake\Http\Response))

#5 E:\xampp\htdocs\myproject\vendor\cakephp\cakephp\src\Http\Runner.php(65): Cake\Http\BaseApplication->__invoke(Object(Cake\Http\ServerRequest), Object(Cake\Http\Response), Object(Cake\Http\Runner))

#6 E:\xampp\htdocs\myproject\vendor\cakephp\cakephp\src\Routing\Middleware\RoutingMiddleware.php(107): Cake\Http\Runner->__invoke(Object(Cake\Http\ServerRequest), Object(Cake\Http\Response))

对于 mongo db 连接尝试下面的代码

public function __connectmongodb()

{

    $m = new \MongoClient('mongodb://localhost:27017');

    return $db = $m->myDb;

}

注意：在mongo DB(Version 3.4.18)使用CakePHP (version 3.5.1) with Apache server on PHP (7.2.4)这些特定版本时我必须这样做

更新- 我们尝试使用php_mongodb-1.4.0-7.2-ts-vc15-x64这个 .dll 文件在 Windows 上