PHP致命错误：未捕获错误：找不到类'Acme \\ RegisterUser'

Question

I'm learning all about namespaces in PHP but I haven't got a clue what I am doing wrong?

Here is my directory structure:

/review
├── index.php
├── RegisterUser.php
└── AuthController.php

index.php

<?php
$registration = new Acme\RegisterUser;

$authController = new Acme\AuthController($registration);

$authController->register();

RegisterUser.php

<?php namespace Acme;

class RegisterUser
{
    public function execute(array $data, $listener)
    {
        var_dump('registering the user');

        $listener->userRegisteredSuccessfully();
    }
}

and AuthController.php

<?php namespace Acme;

    class AuthController {

        protected $registration;

        public function __construct(RegisterUser $registration, $listener) {
            $this->registration = $registration;
        }

        public function register() {
            $this->registration->execute([], $this);
        }

        public function userRegisteredSuccessfully() {
            var_dump('created successsfully. redirect somewhere');
        }

        public function userRegisteredFailed() {
            var_dump('created unsuccessfully. redirect back');
        }

    }

What am I doing wrong?

I am using PHP version PHP 7.1.0RC6 (cli) (built: Nov 9 2016 04:45:59) ( NTS )

Error:

> $ php index.php                                                                                      [±master ●]
PHP Fatal error:  Uncaught Error: Class 'Acme\RegisterUser' not found in /Users/dan/Desktop/oop/src/review/index.php:2
Stack trace:
#0 {main}
  thrown in /Users/dan/Desktop/oop/src/review/index.php on line 2

Fatal error: Uncaught Error: Class 'Acme\RegisterUser' not found in /Users/dan/Desktop/oop/src/review/index.php:2
Stack trace:
#0 {main}
  thrown in /Users/dan/Desktop/oop/src/review/index.php on line 2

Answer 1

您必须首先通过自动加载或手动包含这些类。