Descriptive Questions osf CodeIgniter

1. Write the functions of Email class.

      The Email Class is a CodeIgniter gem. It enables you to easily send e-mails from your

      application. The Email Class also serves as a wrapper class.

2. What is a config object?

    Config objects are just ways of structuring data so that it can easily be read by programming languages.

3.    What are layouts, region and viewports?

Layout:Layout ia an application style screen.

Viewport:A viewport is a special panel-like component that encloses the entire layout, fitting it into the whole visible area of our browser.

Region: Regions that are laid out in the same way as a compass, with North,South, East and West.

4. What do you understand by Desktopping?

    The most pervasive example of a windowing system is the computer desktop and opening

    multiple windows representing applications or elements of the filesystem is called Desktopping.

5.    Write down  CodeIgniter  features?

     CodeIgniter features:

• It is both PHP4 and PHP5 compatible.
• It also has an implementation of the Active record pattern.
• It contains highly useful libraries and other set of functions.

6. What is the function of MVC (Model,View, Controller)  in CodeIgniter?

    MCV (Model  View Controller) is a software development design pattern. It is an   

    approach to separating your applications into three segments: Models, Views, Controllers.

7. Why we use _remap() ?

    We use _remap() if we wish to easily remap our function calls in order to provide a different

   Uniform Resource Identifier structure or to remap functions instead of extending

   CodeIgniter’s routing class.

8. What is the difference between helper and plugin? How can you load multiple helper?

    A plugin should be used to add a single function and helper is a collection of functions.

We can load multiple helpers by:

$this->load->helper(array(‘form’,’url’,cookie’));

9. What are stored in a session when you use session class?

     When we use session class this data is stored in a session.

• The user’s unique Session ID.
• The user’s IP address
• The user’s User Agent string
• The “last activity” timestamp

10. What is the purpose of Flash data?

     Flash data is very useful, and is usually used for informational messages such as “You have    

     been logged out” or “Removed user account” .

12. What are the functions of strip_image_tags and encode_php_tags prepping rules?

      The function strip_image_tags will remove image tags, leaving the RAW image URL.

13. What is callback function?

      A callback is a function in our Controller code that is used in place, or along with, a rule.

14. What are the functions of num_rows() and num_fields()?

      Num_rows() return a specific row by passing the row number as  a digit in the first

      parameter.

      Num_fields() return  the  number of fields returned by our query.

15. What is the purpose of active record caching?

      Using active record caching, we can prevent the reset and reuse queries easily.

16. Write the lines of code to create and drop a database using database forge.

Create database:
$this->dbforge->create_database(‘database_name’);
Drop database:
$this->dbforge-> drop_database (‘database_name’);

17. What are the three different parts of the codeIgniter?

      The three different parts of the codeIgniter are models,views and controllers.

18. What is a library?

      A Codelgniter library is simply a class file that abstracts functionality into easy-to-use

      functions that take much of the strain off the developer.

Share on Google Plus

About blackcat

This is a short description in the author block about the author. You edit it by entering text in the "Biographical Info" field in the user admin panel.