unexpected $this->input->post behavior

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+--- Thread: unexpected $this->input->post behavior (/showthread.php?tid=61152)

unexpected $this->input->post behavior - El Forum - 10-02-2014

[eluser]RobertSF[/eluser]
I'm using an array for my form fields. I've set validation rules according to the manual, and both form_error() and set_value() are working as expected. However, after I submit the form and run the validation successfully, I'm having trouble retrieving the values through the Input class.

When I execute this code:

Code:
if ($this->form_validation->run())

{

  var_dump($this->input->post());

  var_dump($this->input->post('glist'));

  var_dump($this->input->post('glist[name]'));

  exit;

I get this result:

Code:
array

  'glist' => 

    array

      'name' => string 'Motorcycle Club' (length=15)

      'gifts' => string '3' (length=1)

      'price' => string '2.50' (length=4)

  'submit' => string 'Ok' (length=2)

array

  'name' => string 'Motorcycle Club' (length=15)

  'gifts' => string '3' (length=1)

  'price' => string '2.50' (length=4)

boolean false

That is to say, I can retrieve the entire post array, and I can retrieve an array in the post array, but I can't seem retrieve elements from an array in the post array. I've tried various combinations like,

Code:
var_dump($this->input->post('glist['name']'));

var_dump($this->input->post("glist['name']"));

var_dump($this->input->post("glist[name]"));

var_dump($this->input->post('glist[\'name\']'));

but they all return false.

What is the correct way to retrieve array elements from the post array through the Input class?

unexpected $this->input->post behavior - El Forum - 10-02-2014

[eluser]CroNiX[/eluser]

Code:
$glist = $this->input->post('glist');

echo $glist['name'];

unexpected $this->input->post behavior - El Forum - 10-02-2014

[eluser]RobertSF[/eluser]
Thanks. I discovered this isn't a Codeigniter issue since you also can't retrieve array elements directly from the $_POST variable.

Code:
var_dump($_POST); // this works

var_dump($_POST['glist']); // this works too

var_dump($_POST['glist[name]']); // nope, doesn't work.

The last line of code returns an error:

Quote:Severity: Notice
Message: Undefined index: glist[name]

I'd never run into that because I'd never put arrays on the $_POST variable. Looks like Codeigniter makes you try more adventuresome things. Smile

unexpected $this->input->post behavior - El Forum - 10-03-2014

[eluser]InsiteFX[/eluser]

Code:
$data = $this->input->post(NULL, TRUE);

Returns all input post to $data.