CodeIgniter is a powerful and lightweight open-source PHP framework renowned for its simplicity and speed in web application development. With a focus on minimal configuration and a straightforward yet comprehensive toolkit, CodeIgniter empowers developers to build robust and scalable web applications efficiently. Its Model-View-Controller (MVC) architecture enhances code organization, making it easy to create maintainable and modular applications. CodeIgniter also offers a rich set of libraries and helpers, enabling rapid development and customization. Whether you're a novice or an experienced developer, CodeIgniter is an excellent choice for crafting dynamic and high-performance web solutions.
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Practice Test
31. What is the naming convention for CodeIgniter controllers?
A. ControllerName.php
B. My_Controller.php
C. class-controller.php
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Answer: ControllerName.php
32. How do you define a new controller in CodeIgniter?
A. Create a new PHP file in the "controllers" folder
B. Define a new class in the "models" folder
C. Use a CodeIgniter command
D. Edit the "config/routes.php" file
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Answer: Create a new PHP file in the "controllers" folder
33. What is the primary function that a CodeIgniter controller must contain?
A. Index()
B. Main()
C. Execute()
D. Controller()
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Answer: Index()
34. In CodeIgniter, how do you pass data from a controller to a view?
A. Using the $this->load->view() method
B. Using the return statement
C. Using the $this->data array
D. By setting global variables in PHP
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Answer: Using the $this->load->view() method
35. Which CodeIgniter class should a controller extend to inherit core functionality?
A. CI_Controller
B. Base_Controller
C. Controller
D. Core_Controller
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Answer: CI_Controller
36. What is a controller method in CodeIgniter responsible for?
A. Handling specific HTTP requests
B. Loading database models
C. Managing application configuration
D. Handling routing and URL patterns
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Answer: Handling specific HTTP requests
37. How are URL segments mapped to controller methods in CodeIgniter?
A. By matching the URL segments to method names
B. Using regular expressions
C. By using a separate configuration file
D. By defining custom routing rules
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Answer: By matching the URL segments to method names
38. In CodeIgniter, what is the purpose of the "__construct()" method in a controller?
A. Initializing controller properties
B. Loading external libraries
C. Defining routes and URLs
D. Handling database connections
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Answer: Initializing controller properties
39. Which HTTP request methods can be handled by CodeIgniter controllers?
A. GET, POST, PUT, DELETE
B. HEAD, PATCH, OPTIONS
C. CONNECT, TRACE, PROPFIND
D. All of the above (GET, POST, PUT, DELETE)
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Answer: GET, POST, PUT, DELETE
40. In CodeIgniter, what is the primary role of a view?
A. To handle user requests and URL routing
B. To define business logic and data processing
C. To control application flow
D. To display the user interface
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Answer: To display the user interface
