In the Active Record Class, what method is used to update an existing record in the database?
- modify()
- set()
- update()
- update_record()
In the Active Record Class of CodeIgniter, the update() method is used to update an existing record in the database. This method allows you to set new values for the fields of a record based on certain conditions. It simplifies the process of updating records by abstracting the underlying SQL queries and providing a more convenient and readable way to perform database updates.
When optimizing a CodeIgniter application for performance, a developer decides to replace a native library with a more efficient third-party library. The key factor to consider in this scenario is __________.
- Compatibility and support for future CodeIgniter versions
- Cost of the third-party library
- Licensing restrictions of the third-party library
- The ease of integration with CodeIgniter
When replacing a native library with a third-party one for performance optimization, compatibility with future CodeIgniter versions is crucial. This ensures that the application remains maintainable and can benefit from future updates without major disruptions.
In the context of the Email Class, what is the significance of setting MIME types?
- MIME types are irrelevant when dealing with emails.
- MIME types are used to determine the file extension of attachments.
- MIME types define the media type of the email content, such as text or HTML.
- MIME types help in compressing email attachments.
Setting MIME types in the Email Class is crucial for defining the media type of the email content. For example, specifying 'text/html' indicates that the email contains HTML content. It ensures proper rendering on the recipient's end.
For enhanced security, file upload paths should be kept outside the ________ directory.
- application
- public
- root
- system
Keeping file upload paths outside the "application" directory is crucial for security. The "application" directory contains sensitive files related to the CodeIgniter application, and exposing it can pose a security risk.
What is the primary purpose of a Model in CodeIgniter?
- Data manipulation
- Database connectivity
- File handling
- User interface design
In CodeIgniter, a Model is primarily used for database connectivity. It facilitates data manipulation and interacts with the database, ensuring separation of concerns in the MVC architecture.
How does a 'stack trace' aid in debugging exceptions?
- A stack trace is a tool for creating new function calls during debugging.
- A stack trace is irrelevant in debugging exceptions.
- A stack trace is only useful for tracing the execution of loops in the code.
- A stack trace provides a detailed report of the function calls and their sequence leading to the point where an exception occurred.
A stack trace is a crucial tool in debugging as it reveals the entire call stack leading to the point where the exception was thrown. It assists developers in identifying the flow of execution, making it easier to pinpoint and fix issues.
How does CodeIgniter's Content Security Policy (CSP) enhance web application security?
- Enhances database encryption for improved security
- Mitigates Cross-Site Scripting (XSS) attacks by restricting the sources of content
- Provides a user authentication layer for added security
- Speeds up page loading through optimized caching
CodeIgniter's Content Security Policy (CSP) helps mitigate Cross-Site Scripting (XSS) attacks by restricting the sources of content. This adds an extra layer of protection against malicious scripts injected into web pages.
To configure SMTP settings for sending emails in CodeIgniter, one must edit the ________ file.
- config.php
- email.php
- settings.php
- smtp.php
In CodeIgniter, SMTP settings for sending emails are configured in the email.php configuration file. This file allows you to specify various email-related settings, including the SMTP server configuration.
What advanced technique is used in CodeIgniter for optimizing JSON and XML data serialization and deserialization?
- Benchmarking
- Caching
- REST API
- XML-RPC
In CodeIgniter, caching is a common technique used to optimize JSON and XML data serialization and deserialization. Caching reduces the processing time by storing the results of expensive operations.
________ is a key technique in optimizing RESTful APIs in CodeIgniter for better performance.
- Caching
- Encryption
- Middleware
- Throttling
Caching is a crucial technique in CodeIgniter for optimizing RESTful APIs. It involves storing the results of expensive API calls and returning the cached result when the same inputs occur again. This reduces the load on the server and improves overall performance.