Ckeditor controller

<?php

class Ckeditor extends CI_Controller {

    // extends CI_Controller for CI 2.x users

    public $data    =   array();

    public function __construct() {

        //parent::Controller();
         parent::__construct(); for CI 2.x users

        $this->load->helper('ckeditor');


        //Ckeditor's configuration
        $this->data['ckeditor'] = array(

            //ID of the textarea that will be replaced
            'id'    =>  'content',
            'path'  =>  'js/ckeditor',

            //Optionnal values
            'config' => array(
                'toolbar'   =>  "Full",     //Using the Full toolbar
                'width'     =>  "550px",    //Setting a custom width
                'height'    =>  '100px',    //Setting a custom height

            ),

            //Replacing styles from the "Styles tool"
            'styles' => array(

                //Creating a new style named "style 1"
                'style 1' => array (
                    'name'      =>  'Blue Title',
                    'element'   =>  'h2',
                    'styles' => array(
                        'color'     =>  'Blue',
                        'font-weight'   =>  'bold'
                    )
                ),

                //Creating a new style named "style 2"
                'style 2' => array (
                    'name'  =>  'Red Title',
                    'element'   =>  'h2',
                    'styles' => array(
                        'color'         =>  'Red',
                        'font-weight'       =>  'bold',
                        'text-decoration'   =>  'underline'
                    )
                )
            )
        );

        $this->data['ckeditor_2'] = array(

            //ID of the textarea that will be replaced
            'id'    =>  'content_2',
            'path'  =>  'js/ckeditor',

            //Optionnal values
            'config' => array(
                'width'     =>  "550px",    //Setting a custom width
                'height'    =>  '100px',    //Setting a custom height
                'toolbar'   =>  array(  //Setting a custom toolbar
                    array('Bold', 'Italic'),
                    array('Underline', 'Strike', 'FontSize'),
                    array('Smiley'),
                    '/'
                )
            ),

            //Replacing styles from the "Styles tool"
            'styles' => array(

                //Creating a new style named "style 1"
                'style 3' => array (
                    'name'      =>  'Green Title',
                    'element'   =>  'h3',
                    'styles' => array(
                        'color'     =>  'Green',
                        'font-weight'   =>  'bold'
                    )
                )

            )
        );


    }

    public function index() {

        $this->load->view('ckeditor', $this->data);

    }
}