1) To
edit the code use an editor.
2) I
will use Dream-weaver.
3) Now
open the welcome.php file from the
directory …/xampp/htdocs/mysite/application/controllers/
4) If
you read the default code please don’t ignore the code under the comments.
a) As
a fresher you must read at least the following lines:
* Since this controller is set as the default controller in
* Config/routes.php.
This is the main reason for showing the default welcome page after fresh
installation.
Now open the routes.php file from the directory:
..Xampp/htdocs/mysite/application/config/
Now go to the line number 41 where the following line is appeared:
$route['default_controller'] =
"welcome";
It means that after loading a fresh installation the welcome controller
will load first.
b) Now
read another two lines of comments:
* Maps to the following URL
*http://example.com/index.php/welcome
*- or -
*http://example.com/index.php/welcome/index
As we have named our site mysite so if we can get welcome page by writing
the URL three types:
Interesting to say after writing the three URL individually we will get
same output.
In the above three example Codeigniter would attempt to find a controller
named welcome.php and load it. When a controller’s name matches the first
segment of a URI, it will be loaded.
5) Now
back to the welcome.php file of controller directory. Let’s analyze the other
lines step by step:
a) Class
names must start with an uppercase letter. As the class is welcome so it starts
with the Uppercase letter named Welcome
b) Under
the class Welcome there is a
function named index (). The index
function is always loaded by default if the second segment of the URI is empty.
c) Under
the function index() there is a call
to load the welcome_message.php from the view folder.
6) Now
open the welcome_message.php from
the directory …/application/views/ if you open the welcome_message.php you will get some html code.
The
final result is in the welcome message of Codeigniter.
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