Integration of ______ with CodeIgniter helps in step-by-step debugging and monitoring variable values.
- Eclipse
- Firebug
- NetBeans
- XDebug
Integrating XDebug, a powerful debugging tool, with CodeIgniter enables developers to perform step-by-step debugging and closely monitor variable values during the execution of the application.
When troubleshooting an issue where emails are not being received, one should first verify the ________ in the Email Class configuration.
- SMTP settings
- Recipient's email address
- Email sending frequency
- Email sending library
The correct option is SMTP settings. Verifying SMTP settings is crucial when troubleshooting email issues as it ensures the correct configuration for sending emails through a server. This step helps identify and address any issues in the email delivery process.
To roll back a specific migration, the command ________ is used in CodeIgniter.
- migrate:rollback
- revert
- rollback
- undo
In CodeIgniter, the correct command to roll back a specific migration is migrate:rollback. This command is used to undo the last batch of migrations applied.
To enhance user experience, ________ validation is performed as the user fills out the form fields.
- Backend
- Client-side
- Frontend
- Server-side
Client-side validation is performed in the user's browser, providing instant feedback without the need for a round trip to the server.
Which of the following files is crucial for configuring CodeIgniter's URL routing?
- config.php
- index.php
- routes.config
- routes.php
The routes.php file is crucial for configuring CodeIgniter's URL routing. It is located in the config directory and allows you to define custom URL routes, specify controllers and methods, and set default routes. This file plays a key role in defining how URLs are mapped to controllers and methods in a CodeIgniter application.
Which function in CodeIgniter starts a database transaction?
- $this->db->begin_transaction();
- $this->db->initiate_transaction();
- $this->db->start_transaction();
- $this->db->trans_start();
In CodeIgniter, the trans_start() function is used to initiate a database transaction. This function marks the starting point of the transaction, and any subsequent database operations will be treated as part of the transaction until it is explicitly committed or rolled back. The trans_start() function is commonly used at the beginning of a series of database operations that should be treated atomically, ensuring that they are either all successfully completed or none of them are applied.
To reduce the server response time in a CodeIgniter application, one effective strategy is to optimize ________.
- CSS Styling
- Database Queries
- Front-end Templates
- JavaScript Functions
Optimizing database queries is crucial for reducing server response time. By analyzing and optimizing SQL queries, developers can minimize database load, resulting in faster response times for CodeIgniter applications.
Describe the process of using breakpoints in CodeIgniter for debugging complex issues.
- Adding break() function in code
- Breakpoints are not supported in CodeIgniter
- Configuring breakpoints in config.php
- Setting breakpoints in the IDE
Breakpoints in CodeIgniter are set within the IDE, allowing developers to pause execution at specific lines. This powerful debugging technique helps examine variable values, trace program flow, and identify and resolve complex issues efficiently.
In a scenario where a CodeIgniter application needs to switch databases based on user roles, the database switching is typically done in the ________.
- Controller
- Database Configuration
- Model
- View
In CodeIgniter, database switching based on user roles is typically done in the Database Configuration file. This file allows you to set different database connections and switch between them based on your application's requirements.
Advanced XSS protections often involve the use of ________, which restricts scripts based on their source and inline script execution.
- Content Security Policy (CSP)
- Cross-Origin Resource Sharing (CORS)
- Cross-Site Request Forgery (CSRF)
- Cross-Site Scripting (XSS)
Content Security Policy (CSP) is a security standard that helps prevent XSS by defining trusted sources for content. This restricts scripts based on their source and inline script execution.
The assertion method used to check if a function returns a boolean true is called ________.
- assert_bool
- assert_boolean
- assert_true
- assert_truthy
In CodeIgniter, the assertTrue method in PHPUnit is used to assert that a certain expression evaluates to true. This is commonly used to verify that a function returns a boolean true value.
For complex query handling in a RESTful API with CodeIgniter, the ________ pattern is often utilized.
- Adapter
- Observer
- Repository
- Singleton
In CodeIgniter, the Repository pattern is commonly used for handling complex queries in a RESTful API. This pattern helps in separating the logic that retrieves the data from the underlying storage, providing a clean and organized way to manage queries.