Я могу предоставить вам несколько методов реализации сеанса входа в систему в CakePHP, а также примеры кода. Вот четыре распространенных метода:

Метод 1: использование AuthComponent

// In your UsersController.php
// Include the Auth component
public $components = array('Auth');
// Define the login action
public function login() {
    if ($this->request->is('post')) {
        if ($this->Auth->login()) {
            return $this->redirect($this->Auth->redirectUrl());
        } else {
            $this->Flash->error(__('Invalid username or password, try again'));
        }
    }
}
// Define the logout action
public function logout() {
    return $this->redirect($this->Auth->logout());
}

Метод 2: использование компонента сеанса

// In your UsersController.php
// Include the Session component
public $components = array('Session');
// Define the login action
public function login() {
    if ($this->request->is('post')) {
        $username = $this->request->data('User.username');
        $password = $this->request->data('User.password');
        // Perform login validation
        if ($this->User->validatesLogin($username, $password)) {
            $this->Session->write('User', $this->User->findByUsername($username));
            return $this->redirect(array('action' => 'dashboard'));
        } else {
            $this->Session->setFlash('Invalid username or password, try again', 'flash_error');
        }
    }
}
// Define the logout action
public function logout() {
    $this->Session->delete('User');
    return $this->redirect(array('action' => 'login'));
}

Метод 3: использование встроенной обработки сеансов CakePHP

// In your UsersController.php
// Define the login action
public function login() {
    if ($this->request->is('post')) {
        $username = $this->request->data('User.username');
        $password = $this->request->data('User.password');
        // Perform login validation
        if ($this->User->validatesLogin($username, $password)) {
            $this->request->session()->write('User', $this->User->findByUsername($username));
            return $this->redirect(array('action' => 'dashboard'));
        } else {
            $this->Flash->error('Invalid username or password, try again');
        }
    }
}
// Define the logout action
public function logout() {
    $this->request->getSession()->delete('User');
    return $this->redirect(array('action' => 'login'));
}

Метод 4. Использование пользовательской обработки сеансов

// In your UsersController.php
// Define the login action
public function login() {
    if ($this->request->is('post')) {
        $username = $this->request->data('User.username');
        $password = $this->request->data('User.password');
        // Perform login validation
        if ($this->User->validatesLogin($username, $password)) {
            $this->CustomSession->write('User', $this->User->findByUsername($username));
            return $this->redirect(array('action' => 'dashboard'));
        } else {
            $this->Flash->error('Invalid username or password, try again');
        }
    }
}
// Define the logout action
public function logout() {
    $this->CustomSession->delete('User');
    return $this->redirect(array('action' => 'login'));
}