When a CodeIgniter application's performance degrades, the primary debugging approach should focus on ______.
- Caching the entire application
- Identifying and optimizing queries
- Increasing server memory
- Upgrading CodeIgniter version
Performance degradation often relates to inefficient database queries. Identifying and optimizing these queries is a key step in improving the overall performance of a CodeIgniter application.
________ is a common protocol used alongside OAuth for secure authorization.
- HMAC (Hash-based Message Authentication Code)
- JWT (JSON Web Token)
- OpenID Connect
- SAML
OpenID Connect is a common protocol used alongside OAuth for secure authorization. It provides a way to verify the identity of the user and obtain additional user information during authentication.
For complex queries, Active Record Class allows method ________ to directly write parts of the SQL query.
- buildQuery()
- composeQuery()
- rawQuery()
- writeQuery()
The correct method for directly writing parts of the SQL query in Active Record Class is rawQuery(). This method is useful for handling complex queries where direct SQL is required.
How does CodeIgniter handle database versioning through migrations?
- A separate configuration file stores version numbers
- CodeIgniter doesn't support database versioning
- Each migration file includes a version number
- The database server manages versioning automatically
CodeIgniter handles database versioning through migrations by including a version number in each migration file. This version number helps CodeIgniter keep track of which migrations have been executed and ensures the database schema is up-to-date with the application's code.
What is the primary purpose of database migrations in web development?
- Data retrieval from the database
- Dynamic content rendering
- User authentication in CodeIgniter
- Version control of the database schema
Database Migrations in CodeIgniter are primarily used for version control of the database schema. They allow developers to manage and apply changes to the database structure over time, ensuring a smooth transition between different versions of an application.
In CodeIgniter, where should the controller files be placed within the application structure?
- /models
- /views
- /controllers
- /core
CodeIgniter follows the MVC (Model-View-Controller) pattern, and controller files should be placed in the "/controllers" directory within the application structure. The other options are not the standard location for controllers.
The use of 'Opcode caching' in CodeIgniter is beneficial for:
- Accelerating database queries
- Enhancing session management
- Improving front-end performance
- Optimizing PHP code execution
'Opcode caching' in CodeIgniter optimizes PHP code execution by caching the compiled PHP code, resulting in faster script execution and improved overall application performance.
The process of converting database result sets into custom formats is handled by the ________ method in CodeIgniter.
- convert()
- custom()
- format()
- result()
In CodeIgniter, the result() method is used to convert database result sets into custom formats, providing flexibility in handling data retrieved from the database.
For setting multiple recipients in the Email Class, the ________ function is typically used.
- add_receiver
- add_to
- set_recipient
- set_to
To set multiple recipients in the Email Class, you should use the add_to function. It enables you to add multiple email addresses as recipients for the email being sent.
The method ________ is used to update a resource in a RESTful API built with CodeIgniter.
- MODIFY
- POST
- PUT
- UPDATE
In RESTful APIs, the 'PUT' method is commonly used for updating resources. It is essential to use the correct HTTP method to maintain RESTful principles.