GET and POST functions in PHP / CodeIgniter

Am I missing something? How can I achieve the same thing in CodeIgniter?

_{if you want to learn how to truly approach MVC in PHP, you can learn it from Tom Butler articles}

CodeIgniter implements Model-View-Presenter pattern, not MVC (even if it says so). If you want to implement a truly MVC-like application, you're on the wrong track.

In MVP:

• View can be a class or a html template. View should never be aware of a Model.
• View should never contain business logic
• A Presenter is just a glue between a View and the Model. Its also responsible for generating output.

Note: A model should never be singular class. Its a number of classes. I'll call it as "Model" just for demonstration.

So it looks like as:

class Presenter{    public function __construct(Model $model, View $view)    {       $this->model = $model;       $this->view = $view;    }    public function indexAction()    {         $data = $this->model->fetchSomeData();         $this->view->setSomeData($data);         echo $this->view->render();    } }

In MVC:

• Views are not HTML templates, but classes which are responsible for presentation logic
• A View has direct access to a Model
• A Controller should not generate a response, but change model variables (i.e assign vars from $_GET or $_POST
• A controller should not be aware of a view

For example,

class View{   public function __construct(Model $model)   {       $this->model = $model;   }   public function render()   {      ob_start();      $vars = $this->model->fetchSomeStuff();      extract($vars);      require('/template.phtml');      return ob_get_clean();   }}class Controller{    public function __construct(Model $model)    {      $this->model = $model;    }    public function indexAction()    {        $this->model->setVars($_POST); // or something like that    }}$model = new Model();$view = new View($model);$controller = new Controller($model);$controller->indexAction();echo $view->render();

The parameters only allow you to retrieve GET variables. If you want to get the POST variables, you need to use the Input library which is automatically loaded by CodeIgniter:

$this->input->post('data');

So, in your case, it would be:

public function edit($id = -1){    if($id >= 0 && is_numeric($id))    {        // logic here for GET using $id    }    else if($id === -1 && $this->input->post('id') !== false)    {        // logic here for POST using $this->input->post('id')    }}

Note that you can also use this library to obtain GET, COOKIE and SERVER variables:

$this->input->get('data');$this->input->server('data');$this->input->cookie('data');