In a scenario where a CodeIgniter application is experiencing frequent SQL injection attempts, the developer should prioritize securing the ________.
- Controller Logic
- Database Queries
- Session Management
- User Authentication
In the scenario of frequent SQL injection attempts, securing the database queries is crucial. Developers should use parameterized queries or prepared statements to prevent SQL injection attacks. This involves validating and sanitizing user inputs before constructing and executing database queries, thereby mitigating the risk of unauthorized database access.
How does CodeIgniter's database utility class handle different database drivers in a platform-independent way?
- Active Record Pattern
- Connection Pooling
- Database Abstraction Layer
- Query Binding
CodeIgniter's Database Abstraction Layer (DBAL) allows the use of different database drivers in a platform-independent way. It provides a consistent interface for interacting with databases, making it easier to switch between different database systems.
When implementing a file upload feature, a developer opts to use a third-party cloud service for storage to enhance security. This approach primarily addresses the risk of ________.
- Data Breaches
- Data Loss
- Server Overload
- Unauthorized Access
Using a third-party cloud service for file storage enhances security by mitigating the risk of data loss. Storing files externally reduces the impact of server-related issues and provides better scalability and reliability.
When integrating a third-party library that interacts with CodeIgniter's native libraries, it's important to consider __________ compatibility.
- CodeIgniter
- Framework
- System
- Version
When integrating a third-party library into a CodeIgniter application, it's crucial to consider the version compatibility. This ensures that the third-party library is compatible with the specific version of CodeIgniter and its features, preventing potential issues and conflicts.
How does CodeIgniter ensure data integrity during transactions?
- By employing foreign key constraints
- By implementing a two-phase commit protocol
- By performing periodic data audits
- By using database triggers
CodeIgniter ensures data integrity during transactions by employing foreign key constraints. Foreign key constraints establish a relationship between tables, ensuring that the values in a column (or columns) of one table match the values in another table's primary key. When a transaction involves multiple tables with foreign key relationships, CodeIgniter ensures that the foreign key constraints are satisfied, maintaining the consistency and integrity of the data across tables. Foreign key constraints prevent actions that would compromise the referential integrity of the database.
In CodeIgniter, how do you manage library versioning and compatibility with different CodeIgniter versions?
- Include version information in the library file header
- Maintain versioning information in the library configuration file
- Use a separate versioning file for each library
- Version numbers are not necessary for CodeIgniter libraries
It's good practice to include version information in the header of the library file. This ensures proper version tracking and compatibility checks.
In advanced database security, how does the principle of least privilege help in mitigating SQL injection risks?
- It encrypts the database
- It grants maximum access rights
- It grants the minimum necessary access rights
- It relies on strong passwords only
The principle of least privilege in advanced database security advocates granting the minimum necessary access rights to users or processes. By adhering to this principle, the risk of SQL injection is mitigated, as users and processes are only given the specific permissions required for their legitimate tasks, reducing the attack surface and potential impact of SQL injection attacks.
How does CodeIgniter support RESTful controller methods?
- By configuring routes to handle RESTful requests
- By extending the REST_Controller class
- By using special annotations in the controller methods
- CodeIgniter does not support RESTful controller methods
CodeIgniter supports RESTful controller methods by extending the REST_Controller class. This class provides functionality to handle HTTP methods like GET, POST, PUT, and DELETE in a RESTful manner. It streamlines the process of building RESTful APIs in CodeIgniter.
Custom libraries in CodeIgniter are typically loaded using the ________ function in the controller.
- $this->library('library_name');
- $this->load->custom('library_name');
- $this->load->library('library_name');
- $this->load_library('library_name');
In CodeIgniter, libraries are loaded using the $this->load->library('library_name'); function in the controller. The correct syntax ensures that the library is loaded and ready for use in the controller.
In CodeIgniter, unit tests are typically run using the ________ tool.
- CodeTester
- PHPUnit
- Selenium
- UnitCheck
PHPUnit is the primary testing tool used in CodeIgniter for running unit tests. It provides a robust framework for testing PHP code, including features for assertions and mocking.