YII send array or array of array from view to controller action via form post

Question

I have one question with two different type of data.

I have a view in Yii, which has got a form control. I want to send an array, and an array of array to the controller, to my create action.

The array is : $arraySons = ('albert','francis','rupert');

The array of array is $arrayFather = ('1'=>array(6,7,8));

I must use some control, so the form will post it in $_POST?... or this can't be done and I must use JavaScript?

not sure if this will work, but worth a try, <?php echo CHtml::hiddenField('name' , 'value', array('id' => 'hiddenInput')); ?> — jdcookie
– jdcookie, Commented May 21, 2014 at 13:21
no. It doesnt send arrays to controller. Hiddenfield only accepts an string, like value in your example — emmanuel sio
– emmanuel sio, Commented May 21, 2014 at 13:27
I am starting to see your problem now. I guess you could use javascript to pass the array's as ajax to the controller, save the data as a session variable, and then when you move on to the next action you can access them from the controller again? — jdcookie
– jdcookie, Commented May 21, 2014 at 13:32
Or alternatively, if this is the same controller that you used to render this view, just save the data at this time as a session variable, then when you come back you can access again. — jdcookie
– jdcookie, Commented May 21, 2014 at 13:33

crafter · Accepted Answer · 2014-05-22 06:38:14Z

2

Normally, in HTML forms you can create an array by having more than one field with the same name, and a array notation.

<input name="sons[]">
<input name="sons[]">

When you submit the form $_POST['sons'] will be an array, and can be handled as follows :

foreach ($_POST['sons'] as $son) {

    echo 'Son of the father is '.$son."\n";

}

answered May 22, 2014 at 6:38

crafter

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Asped · Accepted Answer · 2014-05-22 08:37:59Z

1

You can create your form as in the answer of @crafter. I just wirte more details:

<input type="hidden" name="sons[]" value="albert">
<input  type="hidden" name="sons[]" value="rupert">

and so on

and then for the fathers you would do something similar:

<input  type="hidden" name="father[1][]" value="6">
<input  type="hidden" name="father[1][]" value="7">
<input  type="hidden" name="father[1][]" value="8">

But if the user does not need to see the data, you could maybe prepare a JSON object with the data, and post it in 1 field, which seem much easier for me

<input  type="hidden" name="father" value="<?= json_encode($arrayFather); ?>">
<input  type="hidden" name="sons" value="<?= json_encode($arraySons); ?>">

and then in your action you can get the data from post and decode it with json_decode

$myArrayFather = json_decode($_POST['father']);
$myArraySons = json_decode($_POST['sons']);

answered May 22, 2014 at 8:37

Asped

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3 Comments

emmanuel sio Over a year ago

thank you for the detail. When I use json_encode, like this <?php $arrayFather = array('1'=>'6'); ?> <input type="hidden" name="father" value="<?php json_encode($arrayFather); ?>"> ... then i look in server, and father is a blank string. I missing something?

Asped Over a year ago

yes :) a little small thing - you do not echo the value - change it into: value="<?php echo json_encode($arrayFather); ?>">

emmanuel sio Over a year ago

WONDERFULl this solution

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