To return the last executed query as a string, Active Record Class provides the method ________.
- getFinalQuery()
- getLastQuery()
- getQueryString()
- showQuery()
The method to return the last executed query as a string in Active Record Class is getLastQuery(). This can be helpful for debugging and logging purposes.
To customize the email header, the Email Class uses the ________ method.
- custom_header
- header_custom
- set_custom
- set_header
The correct method to customize the email header in the Email Class is set_header. This method allows you to set custom headers for your emails, providing flexibility in the email structure.
A user's request to delete an item from the cart goes through a series of steps in the MVC architecture. Identify the correct order: ________.
- 1 (Model), 2 (Controller), 3 (View)
- 2 (Controller), 1 (Model), 3 (View)
- 2 (Controller), 3 (View), 1 (Model)
- 3 (View), 2 (Controller), 1 (Model)
The correct order is: Model processes the delete request (1), Controller handles the request and updates the data (2), and View reflects the updated cart to the user (3).
How does CodeIgniter's 'show_error()' function differ from 'show_404()'?
- 'show_404()' is used for handling routing errors.
- 'show_error()' is for handling database errors.
- It displays a general error message with a 404 status code.
- It specifically shows a 404 page not found error.
'show_error()' is for general errors, while 'show_404()' is specifically for 404 errors. It helps in customizing error pages based on the error type.
Why is user input validation important in preventing SQL injection?
- It enhances user experience
- It ensures the correct syntax of SQL queries
- It is not important in preventing SQL injection
- It prevents attackers from accessing the server
User input validation is crucial in preventing SQL injection as it ensures that the input adheres to the expected data format, thereby preventing malicious input that could be used to manipulate SQL queries.
Which OAuth grant type is most suitable for a web application with a server backend?
- Authorization Code
- Client Credentials
- Implicit
- Resource Owner Password Credentials
The Authorization Code grant type is recommended for web applications with a server backend because it provides an additional layer of security by requiring the exchange of an authorization code for an access token.
To override a built-in Helper in CodeIgniter, place the custom Helper in the ________ directory.
- Application
- Custom
- Override
- System
To override a built-in Helper, place the custom Helper in the application/helpers directory, which takes precedence over the system directory.
What is the significance of the 'ENVIRONMENT' constant in CodeIgniter's index.php file?
- Configuring the database connection
- Defining the application environment
- Enabling or disabling debugging features
- Setting the PHP error reporting level
The 'ENVIRONMENT' constant in CodeIgniter's index.php file is used to define the application environment. It allows you to set whether the application is in development, testing, or production mode. This, in turn, determines the level of error reporting and various debugging features.
How does CodeIgniter support the development of HATEOAS (Hypertext As The Engine Of Application State) in RESTful APIs?
- CodeIgniter provides a built-in HATEOAS library that simplifies the creation of hypermedia links.
- CodeIgniter relies on manual coding for HATEOAS implementation.
- CodeIgniter uses a third-party library for HATEOAS support.
- HATEOAS is not directly supported in CodeIgniter.
CodeIgniter simplifies the creation of hypermedia links by providing a built-in HATEOAS library. HATEOAS is essential for guiding API clients through available actions, improving discoverability and navigation.
What is the role of the 'uri_segment' parameter in CodeIgniter's pagination configuration?
- Configuring the total number of pages in the pagination sequence.
- Defining the base URL for pagination links.
- Setting the number of items per page.
- Specifying the URI segment that contains the page number.
The 'uri_segment' parameter in CodeIgniter's pagination configuration is used to specify the URI segment that contains the page number. This helps the pagination library identify and extract the page number from the URI.