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.
Which function in CodeIgniter displays all PHP errors occurring in the script?
- display_errors()
- show_php_errors()
- log_php_errors()
- log_errors()
In CodeIgniter, the display_errors() function is used to display all PHP errors occurring in the script. This is often helpful during development to catch and address errors promptly. Enabling this option can be done in the configuration files of CodeIgniter. It's crucial to note that displaying errors in a production environment should be avoided for security reasons, and error logs should be used instead.
When limiting the number of results returned by a query in CodeIgniter, the ________ method is employed.
- fetch()
- get_limit()
- limit()
- restrict()
To limit the number of results returned by a query in CodeIgniter, the limit() method is used. It helps in specifying the number of records to be retrieved from the database result set.
What is the role of hooks in modifying the behavior of CodeIgniter controllers?
- Hooks allow you to tap into the core system and execute custom code at specific points
- Hooks are a way to create custom middleware for controllers
- Hooks are only applicable in models, not controllers
- Hooks are used to define URL patterns for routing
Hooks in CodeIgniter enable developers to modify the behavior of the core system at specific execution points. They provide a mechanism to extend or override the default functionality without directly modifying the core files.
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.