What is the role of 'Entity' classes in the latest versions of CodeIgniter for working with Models?
- Defining table schemas
- Handling HTTP requests and responses
- Managing database connections
- Representing individual database rows as objects
In the latest versions of CodeIgniter, 'Entity' classes play a crucial role in representing individual database rows as objects. These classes encapsulate the properties and behavior of database records, making it convenient to work with data on an object-oriented level. This enhances code organization and readability, especially when dealing with complex data structures.
How do parameterized queries help in preventing SQL injection?
- They concatenate user inputs directly into SQL statements
- They encrypt the entire SQL query
- They store user inputs in cookies for security
- They use placeholders for user inputs, ensuring proper escaping
Parameterized queries help prevent SQL injection by using placeholders for user inputs, which are later replaced with sanitized values. This ensures that user inputs do not directly influence the structure of the SQL query, preventing injection attacks.
In integrating a payment gateway, which of the following is crucial for PCI compliance?
- Implementing secure coding practices
- Sharing authentication credentials openly
- Storing sensitive customer data locally
- Using an outdated server
PCI compliance requires implementing secure coding practices during the integration of a payment gateway. This involves following guidelines to protect sensitive customer data, ensuring that it is not stored locally and reducing the risk of data breaches.
In an e-commerce web application, the product listing page is updated dynamically as per user preferences. This dynamic interaction is primarily handled by the ________ component of MVC.
- Controller
- Middleware
- Model
- View
In the MVC architecture, the dynamic updating of the product listing page corresponds to the View component, as it is responsible for presenting the data to the user based on their preferences.
To initialize pagination in CodeIgniter, you must first load the ________ library.
- database
- form
- pagination
- session
In CodeIgniter, pagination is managed through the pagination library. To use pagination, you need to load this library, and it provides functions to create and manage pagination.
________ Helper in CodeIgniter is specifically designed to assist with URL manipulations.
- Form
- URL
- String
- File
The correct option is "b) URL". CodeIgniter has a URL Helper that provides functions specifically designed for URL manipulation, making it easier to work with URLs in your application.
How does the Email Class in advanced web frameworks handle email queueing for bulk sending?
- FIFO Queue
- LIFO Queue
- Priority Queue
- Using Cron Jobs
The Email Class in advanced web frameworks like CodeIgniter typically handles email queueing for bulk sending using a First-In-First-Out (FIFO) queue. This ensures that emails are sent out in the order they are added to the queue, helping maintain a sequential and organized email dispatch process.
Proper error handling often involves logging errors to a(n) ________ for further analysis.
- ErrorLog
- LogFile
- LogRepository
- LoggingSystem
Proper error handling often involves logging errors to an error log for further analysis. This log can be a file, database, or another logging system, helping developers identify and address issues in a systematic manner.
In CodeIgniter, using ________ can help in passing data to views without explicitly sending it through the controller.
- $this->data
- $this->load->data
- $this->output->data
- $this->view->data
By using $this->data in CodeIgniter, you can pass data to views without explicitly sending it through the controller. This allows for cleaner code and separation of concerns. The data set in the controller can be accessed directly in the view, simplifying the process of passing information between the controller and the view.
To enable error logging in a production environment, the log threshold value is changed in the ________ file.
- config.php
- error.php
- index.php
- log.php
The log threshold for error logging in CodeIgniter is configured in the config.php file.