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For a multi-language application, a controller in CodeIgniter switches the language based on user preference using the ________ method.

  • $this->config->set_item()
  • $this->lang->line()
  • $this->lang->load()
  • $this->language->switch()
CodeIgniter provides the $this->lang->load() method to switch the language in a multi-language application. It loads language files based on the user's language preference, enabling the application to display content in the selected language.
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Which CodeIgniter function is used to load a view file?

  • $this->render()
  • $this->view()
  • $this->load->file()
  • $this->load->view()
In CodeIgniter, the correct function to load a view file is $this->load->view(). This function takes the view filename as its parameter and is responsible for rendering the view to the browser. Avoid options like $this->render() or $this->view() as they are not standard CodeIgniter functions.
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In CodeIgniter, how is a controller differentiated when handling AJAX requests as opposed to standard requests?

  • AJAX requests must be routed to a different controller
  • AJAX requests must have a specific parameter in the URL
  • Controllers check the 'X-Requested-With' header for 'XMLHttpRequest'
  • Controllers do not differentiate between AJAX and standard requests
In CodeIgniter, controllers can differentiate between AJAX and standard requests by checking the 'X-Requested-With' header. If the header is set to 'XMLHttpRequest,' it indicates an AJAX request. This allows controllers to customize their response based on the type of request being made.
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In what scenario would you use the Active Record Class's batch update feature?

  • The batch update feature is not supported in CodeIgniter
  • When updating a single record with multiple values
  • When updating multiple records with the same data
  • When updating records based on a condition
The batch update feature is useful when you need to update multiple records with the same data efficiently. It helps reduce the number of queries executed, improving performance in scenarios where bulk updates are required.
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When integrating a payment gateway, what is the role of an API key?

  • Authenticate the user
  • Securely transmit payment data
  • Validate credit card expiration
  • Verify transaction status
In payment gateway integration, an API key is used to authenticate and authorize the user, ensuring secure communication between the application and the payment gateway. It serves as a unique identifier for the application and helps control access to the payment gateway API.
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In CodeIgniter, migrations are typically stored in the ________ directory.

  • app/Migrations
  • application/Migrations
  • database/Migrations
  • system/Migrations
CodeIgniter migrations are typically stored in the database/Migrations directory. It's the default location where migration files are expected to be located.
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In OAuth 2.0, ________ is used to obtain consent from the user for accessing their resources.

  • Authorization Code
  • Authorization Grant
  • Client Credentials
  • Implicit Grant
In OAuth 2.0, the Authorization Grant type is used to obtain consent from the user for accessing their resources. This involves exchanging an authorization code for an access token.
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CodeIgniter's 'xss_clean' function is used for what purpose?

  • Encrypting sensitive user data
  • Ensuring secure session handling
  • Preventing cross-site scripting (XSS)
  • Removing HTML and JavaScript tags
'xss_clean' in CodeIgniter is used to prevent cross-site scripting attacks by removing HTML and JavaScript tags from input data.
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In CodeIgniter, where are log files typically stored by default?

  • application/logs
  • storage/logs
  • system/logs
  • var/logs
By default, CodeIgniter stores log files in the application/logs directory. These log files contain information about errors, warnings, and other important messages generated during the execution of the application. Developers can configure logging settings in the config.php file within the application/config directory. The logging system is an essential tool for debugging and monitoring the application's behavior in different environments.
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In secure form validation, ________ tokens are often used to verify the authenticity of the form submission.

  • CSRF
  • HMAC
  • JWT
  • MD5
Cross-Site Request Forgery (CSRF) tokens are used to prevent unauthorized form submissions by ensuring that the form is submitted from the legitimate source.
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