To ensure that sensitive data is not logged, CodeIgniter recommends disabling ________ in production environments.
- Caching
- Database Queries
- Error Logging
- Profiler
CodeIgniter advises disabling the profiler in production to prevent sensitive information, such as query details, from being logged. The profiler is a debugging tool and should not be enabled in a live environment for security reasons.
When integrating a third-party library that requires database interactions, which CodeIgniter feature is most crucial for seamless integration?
- Database Configuration
- Database Library
- Database Seeder
- Query Builder Class
When integrating a third-party library that requires database interactions, the most crucial CodeIgniter feature is the Database Library. This library provides a set of functions for interacting with the database, making it essential for seamless integration with third-party libraries that involve database operations.
What is the difference between an error and an exception in programming?
- Errors are compile-time issues, while exceptions are runtime issues
- Errors are handled by the programmer, while exceptions are handled by the system
- Errors are intentional, while exceptions are unintentional
- Errors are non-recoverable, while exceptions can be handled and recovered from
The key distinction between errors and exceptions lies in their recoverability. Errors are typically non-recoverable issues that result from severe problems, such as out-of-memory errors. On the other hand, exceptions are designed to be caught and handled, allowing for graceful recovery from unexpected situations during runtime.
What is the primary purpose of OAuth in web applications?
- Creating static web pages
- Defining database schemas
- Enabling secure third-party access to resources
- Storing user passwords securely
OAuth in web applications is primarily used for enabling secure third-party access to resources. It allows users to grant limited access to their resources without sharing their credentials.
In a RESTful API built with CodeIgniter, how is pagination typically implemented for resource listings?
- Embedding pagination information in the request headers.
- Including pagination details in the request body.
- Using query parameters such as "page" and "limit" in the API endpoint URL.
- Utilizing cookies to store and retrieve pagination details.
In a RESTful API built with CodeIgniter, pagination for resource listings is typically implemented by using query parameters such as "page" and "limit" in the API endpoint URL. This allows clients to request specific pages and control the number of items per page.
What is the default behavior of transactions in CodeIgniter regarding auto-commit?
- Auto-commit is disabled by default
- Auto-commit is enabled by default
- CodeIgniter does not support transactions
- Depends on the database driver
In CodeIgniter, the default behavior of transactions is that auto-commit is enabled by default. This means that each SQL statement is treated as a single transaction and is automatically committed.
When chaining methods in Active Record Class, the order of ________ and ________ methods is crucial for correct query formation.
- from, limit
- limit, order_by
- select, where
- where, order_by
The order of limit and order_by methods is crucial when chaining methods in Active Record Class. Incorrect order can lead to unexpected query results.
How does 3D Secure technology in payment gateways contribute to fraud prevention?
- Address Verification System (AVS)
- Authentication of Cardholder
- Encryption of Transaction Data
- Tokenization of Card Information
3D Secure technology contributes to fraud prevention by authenticating the cardholder during the transaction. This adds an extra layer of security, making it more difficult for unauthorized users to make fraudulent transactions, thus enhancing the overall security of online payments.
In CodeIgniter, how can you specify dependencies between different migrations?
- By creating a separate configuration file
- By defining dependencies in the migration command
- It's not possible to specify dependencies
- Using the $depends property in migration files
CodeIgniter allows you to specify dependencies between migrations using the $depends property in migration files. This helps in ensuring that migrations are executed in a specific order, addressing any dependencies between them.
What is the primary difference between session data and flashdata in CodeIgniter?
- Flashdata is only available during the next server request and is then automatically cleared.
- Flashdata is stored in cookies, while session data is not.
- Session data is only used for flash messages and not other data.
- Session data persists throughout the user's entire session.
The primary difference between session data and flashdata in CodeIgniter lies in their lifespan. Session data persists throughout the user's entire session, while flashdata is only available during the next server request and is automatically cleared afterward. Flashdata is useful for temporary messages or data that needs to be displayed once, such as flash messages, while session data is suitable for information that should persist across multiple requests during a user's session. Understanding this difference is crucial for effective use of session-related features in CodeIgniter.