"会话文件总是在 ajax 调用包含 session_start() 的 rest API 后重新创建"

Question

我在php中创建rest API并使用会话登录管理，这里是php Rest API片段代码：

        session_start();
        use App\Router;
        $router = new Router();
        $router->post('/login/', function() {
        $response = [];
        
        $email = $_POST['email'];
        $password = $_POST['password'];
        
        $emailuser = Users::where('email', $email)->where('password', hash("md5", $password))->take(1)->get()->toArray();
        
        if(count($emailuser) > 0) {
            $activestatus = $emailuser[0]['activestatus'];
            if($activestatus >= 1) {
                $_SESSION['login'] = true;
                $_SESSION['email'] = $email;
        
                $response = [
                    'status' => 'success',
                    'info' => [
                        'succ' => 'login success',
                        'login' => $_SESSION['login'],
                    ]
                ];
            } else {
                $response = [
                    'status' => 'fail',
                    'info' => [
                        'err' => 'you has not been registered',
                    ]
                ];
            }
        } else {
            $response = [
                'status' => 'fail',
                'info' => [
                    'err' => 'you has not been registered or validation error',
                ]
            ];
        }
        
        header('Content-Type: application/json; charset=utf-8');
        echo json_encode($response);
    });