CodeIgniter: Quiz, Questions, Mock Test

CodeIgniter: Quiz, Questions, Mock Test

Course Content

1️⃣ Introduction to CodeIgniter 🛠️
  • 🔍 What is CodeIgniter?
  • 🕰️ History & Versions of CodeIgniter (CodeIgniter 3 vs. CodeIgniter 4)
  • ⚖️ CodeIgniter vs Other PHP Frameworks (Laravel, Symfony, Yii)
  • 🏗️ MVC Architecture in CodeIgniter
2️⃣ Installing CodeIgniter 💻
✅ System Requirements
  • PHP 7.4+
  • Composer installed
🔽 Downloading CodeIgniter from Official Website
📥 Installing via Composer

composer create-project codeigniter4/appstarter my_project

📂 Directory Structure of CodeIgniter 4
🌍 Setting Base URL in .env

app.baseURL = 'http://localhost/my_project/'

🚀 Running the Development Server

php spark serve

3️⃣ CodeIgniter Configuration ⚙️
  • 📜 Understanding app/Config/App.php
  • 🗄️ Configuring Database in app/Config/Database.php
  • 🔧 Environment Configuration (.env file)
  • 🛠️ Enabling Debug Mode
  • ⏳ Setting Up Timezone in app/Config/App.php
4️⃣ CodeIgniter Routing 🚦
🛤️ Basic Routing

$routes->get('/home', 'Home::index');

📝 Parameterized Routes

$routes->get('/user/(:num)', 'User::profile/$1');

🔗 Redirect Routes

return redirect()->to('/dashboard');

5️⃣ CodeIgniter Controllers 🎮
📌 Creating a Controller

php spark make:controller UserController

6️⃣ CodeIgniter Models 🗄️
📌 Creating a Model

php spark make:model UserModel

📊 Querying the Database

$users = $this->UserModel->findAll();

7️⃣ CodeIgniter Views & Templating 🖼️
🔄 Passing Data to Views

return view('home', ['name' => 'John']);

🖥️ Using Layouts & Partials


echo view('header');
echo view('content');
echo view('footer');

8️⃣ CodeIgniter Database & Migrations 🗄️
📝 Creating a Database Migration

php spark make:migration CreateUsersTable

⏳ Running Migrations

php spark migrate

🔄 Rolling Back Migrations

php spark migrate:rollback

9️⃣ CodeIgniter CRUD Operations 📝
📥 Insert Data into Database

$this->db->table('users')->insert($data);

📤 Retrieve Data from Database

$query = $this->db->table('users')->get();

🔟 CodeIgniter Form Handling & Validation ✅
✅ CodeIgniter Form Validation

$validation->setRule('email', 'Email', 'required|valid_email');

1️⃣1️⃣ CodeIgniter Session & Cookies 🍪
🔐 Using Sessions

session()->set('user', $userData);

🔍 Retrieving Session Data

$user = session()->get('user');

1️⃣2️⃣ CodeIgniter Authentication & Authorization 🔑
  • 👤 User Login & Registration
  • 🔒 Hashing Passwords using password_hash()
  • 🏆 Role-Based Access Control (RBAC)
1️⃣3️⃣ CodeIgniter File Upload & Handling 📂
📤 Uploading Files


$file = $this->request->getFile('userfile');
$file->move(WRITEPATH.'uploads');

1️⃣4️⃣ CodeIgniter RESTful API Development 🌐
📡 CodeIgniter API Controller

php spark make:controller Api/UserController --restful

📊 JSON Response in API

return $this->response->setJSON($data);

1️⃣5️⃣ CodeIgniter Events & Hooks 🔄
🚀 Defining Custom Events

Events::trigger('user_registered', $user);

1️⃣6️⃣ CodeIgniter Email & Notifications 📩
📧 Sending Emails in CodeIgniter


$email->setTo('user@example.com')
    ->setSubject('Welcome')
    ->setMessage('Hello')
    ->send();

1️⃣7️⃣ CodeIgniter Task Scheduling & Queues 🕒
  • 🔄 Running Cron Jobs
  • 📤 Using Queues (Beanstalkd, Redis)
1️⃣8️⃣ CodeIgniter Testing 🧪
📝 Writing Unit Tests

php spark make:test UserTest

✅ Running Tests

php spark test

1️⃣9️⃣ CodeIgniter Security Best Practices 🔒
🛡️ CSRF Protection

2️⃣0️⃣ CodeIgniter Deployment & Optimization 🚀
  • 🚢 Deploying on Shared Hosting / AWS / DigitalOcean
  • ⚡ Enabling Cache in CodeIgniter
  • 📊 Database Indexing for Optimization
📌 Sorting Example in CodeIgniter 🔄
📊 Sorting Data in Controller


public function sortUsers()
{
    $users = $this->db->table('users')->orderBy('name', 'asc')->get()->getResult();
    return view('users_list', ['users' => $users]);
}

🔍 Sorting in View using Query Parameters


Sort by Name (ASC)
Sort by Name (DESC)