<?php
echo'<a href="index.php?id=1">Pagina 1</a>
<a href="index.php?id=2">Pagina 2</a>';


if($_GET['id'] == '1')
{ 
echo 'PAGINA 1';
}
else if($_GET['id'] == '2')
{
echo 'PAGINA 2';
}
else
{ 
 echo 'ID bestaat niet!';
}
?>

<?php if($configuratie[0]['offline'] = 'Ja')
			{
				echo'Ja <input type="radio" name="offline" value="Ja" checked> 
				Nee <input type="radio" id="" name="offline" value="Nee" >';
			}
			else if($configuratie[0]['offline'] = 'Nee')
			{
				echo'Ja <input type="radio" name="offline" value="Ja"> 
				Nee <input type="radio" id="" name="offline" value="Nee" checked>';
			}
	    ?>

<?php
class Admin_configuratie extends CI_Controller {


    /**
    * name of the folder responsible for the views 
    * which are manipulated by this controller
    * @constant string
    */
    const VIEW_FOLDER = 'admin/configuratie';
 
    /**
    * Responsable for auto load the model
    * @return void
    */
    public function __construct()
    {
        parent::__construct();
        $this->load->model('configuratie_model');


        if(!$this->session->userdata('is_logged_in')){
            redirect('admin/login');
        }
    }
 
    /**
    * Load the main view with all the current model model's data.
    * @return void
    */
    public function index()
    {


        //pagination settings
        $config['per_page'] = 5;


        $config['base_url'] = base_url().'admin/configuratie';
        $config['use_page_numbers'] = TRUE;
        $config['num_links'] = 20;
        $config['full_tag_open'] = '<ul>';
        $config['full_tag_close'] = '</ul>';
        $config['num_tag_open'] = '<li>';
        $config['num_tag_close'] = '</li>';
        $config['cur_tag_open'] = '<li class="active"><a>';
        $config['cur_tag_close'] = '</a></li>';


        //limit end
        $page = $this->uri->segment(3);


		//fetch sql data into arrays
        $data['configuratie'] = $this->configuratie_model->get_configuratie();        


         
        //initializate the panination helper 
        $this->pagination->initialize($config);   


        //load the view
        $data['main_content'] = 'admin/configuratie/list';
        $this->load->view('includes/template', $data);  


    }
//index


   public function update()
    {
        //if save button was clicked, get the data sent via post
        if ($this->input->server('REQUEST_METHOD') === 'POST')
        {
            //form validation
            $this->form_validation->set_rules('websitenaam', 'Websitenaam', 'trim|required');
            $this->form_validation->set_error_delimiters('<div class="alert alert-error"><a class="close" data-dismiss="alert">×</a><strong>', '</strong></div>');
            //if the form has passed through the validation
            if ($this->form_validation->run())
            {
    
                $data_to_store = array(
                    'websitenaam' => $this->input->post('websitenaam'),
					 'offline' => $this->input->post('offline'),
					  'offline_bericht' => $this->input->post('offline_bericht'),
					   'metabeschrijving' => $this->input->post('metabeschrijving'),
					    'metatrefwoorden' => $this->input->post('metatrefwoorden'),
                );
                //if the insert has returned true then we show the flash message
                if($this->configuratie_model->update_configuratie($data_to_store) == TRUE){
                    $this->session->set_flashdata('flash_message', 'updated');
                }else{
                    $this->session->set_flashdata('flash_message', 'not_updated');
                }
                redirect('admin/configuratie/update');


            }//validation run


        }


        //if we are updating, and the data did not pass trough the validation
        //the code below wel reload the current data


        //product data 
	    $data['configuratie'] = $this->configuratie_model->get_configuratie();   
        //load the view
        $data['main_content'] = 'admin/configuratie/edit';
        $this->load->view('includes/template', $data);            


    }//update
}

<?php
class Configuratie_model extends CI_Model {
 
    public function __construct()
    {
        $this->load->database();
    }


    public function get_configuratie()
    {
		$this->db->select('*');
		$this->db->from('configuratie');
		$query = $this->db->get();
		return $query->result_array(); 
    }    


    function update_configuratie($data)
    {
		$this->db->update('configuratie', $data);
		$report = array();
		$report['error'] = $this->db->_error_number();
		$report['message'] = $this->db->_error_message();
		if($report !== 0){
			return true;
		}else{
			return false;
		}
	} 
}
?>

<div class="container top">
      
      <ul class="breadcrumb">
        <li>
          <a href="<?php echo site_url("admin"); ?>">
            <?php echo ucfirst($this->uri->segment(1));?>
          </a> 
          <span class="divider">/</span>
        </li>
        <li>
          <a href="<?php echo site_url("admin").'/'.$this->uri->segment(2); ?>">
            Configuratie
          </a> 
          <span class="divider">/</span>
        </li>
        <li class="active">
          <a href="#">Bewerken</a>
        </li>
      </ul>
      
      <div class="page-header">
        <h2>
          Configuratie
        </h2>
      </div>


 
      <?php
      //flash messages
      if($this->session->flashdata('flash_message')){
        if($this->session->flashdata('flash_message') == 'updated')
        {
          echo '<div class="alert alert-success">';
            echo '<a class="close" data-dismiss="alert">×</a>';
            echo '<strong>Succes!</strong> gebruiker is succesvol aangepast';
          echo '</div>';       
        }else{
          echo '<div class="alert alert-error">';
            echo '<a class="close" data-dismiss="alert">×</a>';
            echo '<strong>Oh snap!</strong> change a few things up and try submitting again.';
          echo '</div>';          
        }
      }
      ?>
      
      <?php
      //form data
      $attributes = array('class' => 'form-horizontal', 'id' => '');


      //form validation
      echo validation_errors();


      echo form_open('admin/configuratie/update', $attributes);
      ?>
			         <fieldset>
          <div class="control-group">
            <label for="inputError" class="control-label">Websitenaam</label>
            <div class="controls">
              <input type="text" id="" name="websitenaam" value="<?php echo $configuratie[0]['websitenaam']; ?>" >
            </div>
            <label for="inputError" class="control-label">Website offline</label>
            <div class="controls">
            <?php if($configuratie[0]['offline'] = 'Ja')
			{
				echo'Ja <input type="radio" name="offline" value="Ja" checked> 
				Nee <input type="radio" id="" name="offline" value="Nee" >';
			}
			else if($configuratie[0]['offline'] = 'Nee')
			{
				echo'Ja <input type="radio" name="offline" value="Ja"> 
				Nee <input type="radio" id="" name="offline" value="Nee" checked>';
			}
			?>			
			<br /><br />
            </div>
            <label for="inputError" class="control-label">Offline bericht</label>
            <div class="controls">
			<textarea name="offline_bericht" value="<?php echo $configuratie[0]['offline_bericht']; ?>"><?php echo $configuratie[0]['offline_bericht']; ?></textarea>
            </div>
            <label for="inputError" class="control-label">Meta beschrijving</label>
            <div class="controls">
			<textarea name="metabeschrijving" value="<?php echo $configuratie[0]['metabeschrijving']; ?>"><?php echo $configuratie[0]['metabeschrijving']; ?></textarea>
            </div>
            <label for="inputError" class="control-label">Meta trefwoorden</label>
            <div class="controls">
			<textarea name="metatrefwoorden" value="<?php echo $configuratie[0]['metatrefwoorden']; ?>"><?php echo $configuratie[0]['metatrefwoorden']; ?></textarea>
            </div>
          <div class="form-actions">
            <button class="btn btn-primary" type="submit">Wijzigen</button>
          </div>
        </fieldset>


      <?php echo form_close(); ?>


    </div>