DIY 实现 ThinkPHP 核心框架（四）命名空间

namespace demo1;

$num = '666';

class Hi
{
    public function hi()
    {
        echo 'Hello World!';
    }
}Copy

namespace demo2;

require __DIR__ . '/demo1.php';

echo $num;  // 666
$hi = new \demo1\Hi();
$hi->hi();  // Hello World!Copy

namespace app\index\controller;

class Employee
{
    public static function addr（）
    {
        return __CLASS__;
    }
}Copy

namespace think;

use app\index\controller;

class Container
{
    public static function show()
    {
        return controller\Employee::addr();
    }
}Copy

use think\Container;

require __DIR__ . '/Employee.php';
require __DIR__ . '/Container.php';

echo Container::show();  // 输出： app\index\controller\EmployeeCopy

namespace app\employee\model;
use mysqli;Copy

namespace app\employee\controller;Copy

namespace app\employee\controller;

use app\employee\model\Employee as EmployeeModel;

class Employee
{
    public function index()
    {
        // 通过命名空间引入了模型层
        // require MODULE_PATH . 'model/EmployeeModel.php';
        $model = new EmployeeModel();
        $data = $model->getAll();
        require MODULE_PATH . 'view/employee.html';
    }
}Copy

$pathinfo =  !empty($_SERVER['PATH_INFO']) ? $_SERVER['PATH_INFO'] : '';

// 定义路由规则
$route = [
    'index' => '/employee/employee/index',
];

$pathinfo = trim($pathinfo, '/');
$pathinfo = $route[$pathinfo] ?? '';
$arr = explode('/', trim($pathinfo, '/'));

if (!isset($arr[2])) {
    exit('该操作不存在！');
}

list ($module, $controller, $action) = $arr;
// 目录改变 需从上一级目录进入 application
define('MODULE_PATH', '../application/' . $module . '/');

// 以命名空间的方式引入控制器类
$controllerName = '\\app\\' . $module . '\\controller\\' . ucwords($controller);
// 控制层、模型层类名称更改后相应代码也要做改变
$controllerPath = MODULE_PATH . 'controller/' . ucwords($controller) . '.php';

$empolyee = new $controllerName();
$empolyee->$action();Copy