In CodeIgniter, how are data passed from the controller to a view?
- By directly accessing controller variables in the view
- Through global variables
- Using the $this->data() method
- Via the $this->load->vars() method
Data is passed from a controller to a view in CodeIgniter using the $this->load->vars() method. This method allows you to set variables that can be accessed within the view. Directly accessing controller variables in the view is not considered a best practice.
What distinguishes a stored XSS attack from a reflected XSS attack?
- Reflected XSS requires user interaction, while stored XSS does not.
- Reflected XSS stores data on the server, while stored XSS reflects data to the user.
- Stored XSS involves persistent injection of malicious scripts, while reflected XSS involves immediate execution without persistence.
- Stored XSS occurs in client-side code, while reflected XSS occurs in server-side code.
Stored XSS refers to attacks where the injected script is permanently stored on the target server, affecting all users who view the compromised page. Reflected XSS, on the other hand, involves the immediate execution of the injected script without persistent storage.
In CodeIgniter, what is the purpose of the $db['default'] array found in the database configuration file?
- It contains the default database query for all models
- It defines the default database connection parameters
- It is used to set the default database driver
- It specifies the default database name for all controllers
The $db['default'] array in CodeIgniter's database configuration file is used to define the default database connection parameters.
Describe the role of continuous integration in the context of unit testing in CodeIgniter.
- Continuous integration helps automate the execution of unit tests in a consistent environment.
- Continuous integration is irrelevant to unit testing in CodeIgniter.
- Continuous integration is only necessary for large projects.
- Unit testing and continuous integration are unrelated processes.
Continuous integration plays a crucial role in unit testing in CodeIgniter by automating the execution of tests in a consistent environment. This ensures that tests are run regularly, providing timely feedback on code changes and helping maintain code quality throughout development.
How do you load a Helper in a CodeIgniter controller?
- $this->load->helper('helper_name');
- $this->helper->load('helper_name');
- include_helper('helper_name');
- require_once('helper_name');
In a CodeIgniter controller, you load a Helper using the syntax $this->load->helper('helper_name');. This makes the functions within the helper available for use in the controller. Incorrect options do not represent the correct way to load a Helper in CodeIgniter.
A developer wants to pass user profile data to a dashboard view in CodeIgniter. The most efficient approach is to use ________.
- $this->load->view('dashboard', $data);
- $this->load->view('dashboard', compact('data'));
- $this->load->view('dashboard', ['data' => $data]);
- $this->load->view('dashboard', array('data' => $data));
In CodeIgniter, the most efficient way to pass data to a view is by using an associative array. The option 3 demonstrates the correct syntax by passing the data directly within the load->view function. This approach keeps the code concise and readable.
The Active Record Class method ________ is used to delete records from the database.
- delete()
- destroy()
- erase()
- remove()
The correct method to delete records from the database using the Active Record Class in CodeIgniter is delete(). This method allows you to specify the table and the criteria for deletion.
Ensuring that user inputs are __________ based on the expected data type is crucial in preventing SQL injection.
- Encrypted
- Sanitized
- Typed
- Validated
Ensuring that user inputs are typed, meaning they match the expected data type, is crucial in preventing SQL injection. This practice adds an additional layer of defense by ensuring that the input data is not only syntactically correct but also of the expected type.
When a CodeIgniter application's performance degrades, the primary debugging approach should focus on ______.
- Caching the entire application
- Identifying and optimizing queries
- Increasing server memory
- Upgrading CodeIgniter version
Performance degradation often relates to inefficient database queries. Identifying and optimizing these queries is a key step in improving the overall performance of a CodeIgniter application.
________ is a common protocol used alongside OAuth for secure authorization.
- HMAC (Hash-based Message Authentication Code)
- JWT (JSON Web Token)
- OpenID Connect
- SAML
OpenID Connect is a common protocol used alongside OAuth for secure authorization. It provides a way to verify the identity of the user and obtain additional user information during authentication.