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Editorial Team
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Asked: 2026-06-13T04:24:35+00:00

$.post(http://localhost/academico/materias/getid, ui.item.value, function(data){ console.log(data); }, json); In my controller the $data variable is always

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$.post("http://localhost/academico/materias/getid",
       ui.item.value,
       function(data){
           console.log(data);
       }, "json");

In my controller the $data variable is always null:

// $data is always null. How come?
public function getid($data = null) {
    debug($data);
    // Como vamos a retornar solamente datos, no necesitamos el layout.
    $this->layout = null;

    $this->set('data', $data);
    $this->render('/Elements/ajaxreturn');
}

How can I get the value POST’d to be bound to something I can use in the Controller code?

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1 Answer

  1. Editorial Team

    You don’t need to define the $data variable as a parameter to the function, that expects it to be present in the URL. POST data is automatically populated in the Request object.

    http://book.cakephp.org/2.0/en/controllers/request-response.html#accessing-post-data

    “All POST data can be accessed using CakeRequest::$data. Any form data that contains a data prefix, will have that data prefix removed.”

    $this->request->data
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