For enhanced security, CodeIgniter can be configured to regenerate session IDs every ________ requests.
- 100
- 1000
- 50
- 500
In CodeIgniter, the session ID regeneration interval is determined by the setting $config['sess_regenerate']. When set to 100, for example, the session ID will be regenerated every 100 requests, enhancing security by reducing the risk of session fixation attacks.
What is the primary purpose of the show_error() function in CodeIgniter?
- To display a custom error message
- To display a detailed error message
- To log errors in a separate file
- To redirect to the default error page
The primary purpose of the show_error() function in CodeIgniter is to display a detailed error message to the user when an exceptional situation occurs. It is particularly useful for providing users with clear and informative error messages, helping them understand what went wrong. Developers can customize the error message to include relevant details and instructions on how to resolve the issue, improving the overall user experience.
An API fails to respond, triggering a timeout exception. The best practice in this scenario would be to ________.
- Crash the application and alert the user
- Ignore the exception and continue processing
- Log the exception for future analysis
- Retry the API call
In the case of a timeout exception, a best practice is to retry the API call, as the failure might be temporary. Ignoring the exception may lead to incomplete processing, while logging it allows for future analysis. Crashing the application is not a recommended approach.
What advanced technique is used in the Email Class for email encryption?
- AES Encryption
- MD5 Hashing
- RSA Encryption
- SSL Encryption
The Email Class in CodeIgniter utilizes SSL Encryption for securing email communication. SSL (Secure Sockets Layer) is a cryptographic protocol that provides a secure channel for data transmission. In the context of email, it ensures that the email content is encrypted during transmission, enhancing the security of sensitive information.
Which HTML attribute is crucial for preventing XSS in user-generated content?
- href
- htmlspecialchars
- rel
- src
The htmlspecialchars function in PHP is crucial for preventing XSS in user-generated content. It converts special characters to HTML entities, preventing the browser from interpreting them as code. This helps to neutralize potential XSS attacks.
How can a controller in CodeIgniter pass data to a view?
- Using $this->data('key', 'value')
- Using $this->load->set('key', 'value')
- Using $this->load->view('view_name', $data)
- Using $this->view->set('key', 'value')
In CodeIgniter, data can be passed to a view by using the $this->load->view('view_name', $data) method, where 'view_name' is the name of the view file, and $data is an associative array containing the data to be passed.
In CodeIgniter, the naming convention for custom library files is ________.
- Customlibrary.php
- Library.php
- Library_custom.php
- My_library.php
The naming convention for custom library files in CodeIgniter is to use the format 'My_library.php' where 'My' is a user-defined prefix, and 'library' is the name of the library. This convention helps maintain consistency and avoid naming conflicts.
In CodeIgniter, handling different API versions is typically achieved through ________.
- Dependency Injection
- Middleware
- Routing
- Versioning
Handling different API versions in CodeIgniter is commonly achieved through versioning. This involves incorporating the API version into the URI or request headers, allowing developers to make changes to the API without affecting existing clients.
How does the Query Builder in CodeIgniter help in preventing SQL injection?
- It automatically escapes data used in queries
- It enforces strict input validation
- It restricts the use of certain SQL keywords
- It uses a complex encryption algorithm
The Query Builder in CodeIgniter helps prevent SQL injection by automatically escaping data used in queries. This means that user input is sanitized before being included in the SQL statement, reducing the risk of malicious SQL injection attacks. It adds a layer of security by handling the proper escaping of data, making the application more robust against common security threats.
In the context of SQL injection, what is the significance of using stored procedures?
- Stored procedures add an extra layer of security by encapsulating SQL logic
- Stored procedures are only used for performance optimization
- Stored procedures have no impact on SQL injection prevention
- Stored procedures make SQL injection attacks more potent
Using stored procedures can enhance security by encapsulating SQL logic on the server side, reducing the risk of SQL injection attacks as user inputs are not directly embedded in the query.