Syntax of Codeigniter private functions

private function _yourfunction(){


}

if you try to access this function in url it will not be available.

http://example.com/Controllername/_yourfunction

Codeigniter Remap Function : Codeigniter Remap Function is used to override the default function called in url.

You can override the function name “profile” with other function name in the controller.
Means you can map original function name with your custom name in url.

Codeigniter Remap Function Example

For example if want to map url www.example.com/User/your_custom_name

about_me();// call about_me() function.
     break;
     case 'edu' : 
      $this->education();// call education() function.
     break;
     default :
      $this->index();
     break;

}

}
public function index(){

echo "Welcome to index function."; 

}

public function profile(){
 echo "Welcome to profile function";
}
public function about_me(){
 echo "Hi I am John !";
}
public function education(){
 echo " I am Master in Computer application.";
}


}   
?>                         

1. Example :

Map http://localhost/User/about to the http://localhost/User/about_me

Hit the url

http://localhost/User/about

Where about calls about_me() function.

Demo

2. Example :

Map http://localhost/User/edu to the http://localhost/User/education

Hit the url

http://localhost/User/edu

Where edu calls education() function.

Demo

Codeigniter controller function And parameters Example

Lets Understand with the following example and demo :

";
   echo "Name: ". $name."
";
}
}   
?>                         

1. Call index() function :

To access index() function hit like this :

http://localhost/Home/index

Where index calls index() function.

Demo

Try it »

1. Call profile() function :

To access profile() function hit like this :

http://localhost/Home/profile

Where profile calls function() function.

Demo

Try it »

1. Call comments() function with parameters :

You can define default parameter in function as :

commnts($id = null, $name = null)

Access the comments function with parameter :

http://localhost/Home/comments/9/john

Where first parameter is id and second is name as defined in parameter which will be received in parameters $id, $name .

Demo

Try it »

All the controllers are kept inside the application/controllers folder.

Codeigniter Controller Syntax

Lets start with a simple controller named as “Helloworld”.

Note Class name must start with uppercase
example:

class Helloworld extends CI_Controller {

}

Not Like This :

class helloworld extends CI_Controller {
// this invalid class name.

}

Now visit your site as :

http://localhost/Helloworld

Or

If you have not removed the index.php from url

http://localhost/index.php/Helloworld

Note : Default function index() will be called

Which is :

http://localhost/Helloworld/index

Lastest Version : 3.0.0

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