In CodeIgniter, which method is recommended for sending form data to a view?
- $this->form->open()
- $this->load->form()
- $this->load->form_open()
- $this->load->helper('form')
The recommended method for sending form data to a view in CodeIgniter is by loading the form helper using $this->load->helper('form'). This helper provides functions to create form elements and handle form submissions efficiently.
To simulate a database in unit tests, CodeIgniter recommends using ________.
- FakeDatabase
- MockDatabase
- SimDatabase
- TestDatabase
CodeIgniter suggests using the CIUnitTestCase class and the DBUnitTestCaseTrait trait to simulate a database in unit tests. This helps in testing database interactions without affecting the actual database.
How does the 'third_party' directory differ from the 'libraries' directory in CodeIgniter?
- It contains external libraries and packages.
- It holds third-party assets like images and styles.
- It is a reserved directory for future framework use.
- It is used for storing custom CodeIgniter libraries.
The 'third_party' directory is intended for external libraries and packages, while the 'libraries' directory is meant for custom libraries created within the application.
A developer needs to add a new table to the database without disrupting the existing data. The first step they should take is to create a ________.
- Controller
- Migration
- Model
- View
In CodeIgniter, when adding a new table to the database without disrupting existing data, developers should create a migration. Migrations allow for version control of the database schema, enabling easy management of changes while preserving data integrity.
What is the minimum PHP version required to install CodeIgniter 4?
- 5.6
- 7
- 7.2
- 7.4
CodeIgniter 4 requires a minimum PHP version of 7.2. It utilizes features and improvements introduced in PHP 7.2 and later, ensuring compatibility and taking advantage of the latest language enhancements.
How does custom error handling in CodeIgniter enhance security?
- It automatically redirects users to a secure error page.
- It encrypts error messages for added security.
- It logs errors without displaying them to users.
- It prevents sensitive information leakage by displaying generic error messages to users.
Custom error handling in CodeIgniter enhances security by preventing sensitive information leakage. Instead of displaying detailed error messages to users, it's recommended to show generic messages to avoid potential security risks.
Which of the following best describes the 'View' component in MVC architecture?
- It handles user input and communication between Model and Controller.
- It manages the user interface and presentation logic.
- It represents the application's data and business logic.
- It stores configuration settings for the application.
In MVC architecture, the 'View' component manages the user interface and presentation logic. It is responsible for displaying data to the user and formatting it appropriately. The View should remain decoupled from the business logic to ensure code maintainability and flexibility.
________ is a technique in MVC that involves breaking down complex Views into smaller, reusable components.
- Abstraction
- Encapsulation
- Inheritance
- Templating
Templating is a technique in MVC (Model-View-Controller) that involves breaking down complex Views into smaller, reusable components. Templating simplifies the presentation layer by allowing the creation of modular and maintainable views. It promotes code reusability and separation of concerns within the application architecture.
How do migrations in CodeIgniter assist in maintaining consistency across different environments?
- Version Control
- Database Synchronization
- Schema Management
- Code Deployment
Migrations in CodeIgniter play a crucial role in managing database schema changes. The "Schema Management" option refers to the capability of migrations to update the database schema, ensuring consistency across various environments during application deployment.
In client-side validation, which language is commonly used to validate form inputs before submission?
- CSS
- JavaScript
- PHP
- Python
JavaScript is commonly used for client-side form validation. It enables validation before data submission, improving user experience by providing real-time feedback. This helps in catching errors early and reduces the load on the server for validation tasks.