Retrieving array of data from POST CodeIgniter

Question

I'm using CodeIgniter and I'm having trouble retrieving an array from the input. I have been searching but I can't solve this. The thing is i'm using a button to dynamically add text boxes.

(HTML from view.php)

<?php echo form_open('verifynovareceita'); ?>
(...)
<div id="ings">
       <p>Ingredients:</p>
       <input type="text" name="ings[]"/>
</div>

<input type="button" value="Add another ingrdient" name="add" onClick="addTextBox()">

(...)

<script type='text/javascript'>
    function addTextBox() {
        var ings = document.getElementById("ings");
        var input1 = document.createElement("input");
        input1.type = "text";       
        input1.name = "ings[]";
        ings.appendChild(input1);
    }

And the (visual) result is what it's expected. It creates as many inputs as I wanted. The problem is when it comes to retrieving the data from the POST array:

(PHP from controller)

  $ings = $this->input->post('ings');
  $row_count = count($ings);

$row_count has value 1, no matter how many text boxes existed. Is there a problem with my code? Or is it the fact that i'm using form_open that makes it impossible to work? I've tried to do the same thing, without codeigniter and it worked fine... I appreciate any help! Thank you in advance.

first print_r($_POST['ings']); and check if it contains array or not because i run this example it works fine for me. May be your problem with this line $this->input->post('ings'); try to use $ings = $_POST['ings']; and check — Agha Umair Ahmed
– Agha Umair Ahmed, Commented Jan 27, 2014 at 6:37
Thank you for the answers. Unfortunatelly, i've tried what you sugested and it didn't work. Adding foreach($ings as $ing) { echo $ing; } Only shows the first input of ings. And trying print_r($_POST['ings']); Only gives the first ing as well (output: Array ( [0] => ing1 )) I have no idea why this is happening... — user1428534
– user1428534, Commented Jan 27, 2014 at 16:18

Himanshu Pandey · Accepted Answer · 2014-01-27 05:46:33Z

1

$this->input->post() function will not work up to mark if input is such type of array. if input is a such type of array you should use classic mehtod

$ings = $_POST('ings'); $row_count = count($ings);

answered Jan 27, 2014 at 5:46

Himanshu Pandey

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Kumar V · Accepted Answer · 2014-01-27 06:35:58Z

0

For array inputs, you can use $this->input->post() as below. You have done correctly. You can use foreach as below to get all values from the array.

$ings = $this->input->post("ings");

foreach($ings as $ing)
{
  // your code here
}

answered Jan 27, 2014 at 6:35

Kumar V

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Arup Adhikari · Accepted Answer · 2014-01-27 12:26:07Z

0

You Used ings[] as name. Now if you Retrieve that with $this->input->post("ings"); it will always be a array. Now use Foreach loop or For loop to get the array elements.

answered Jan 27, 2014 at 12:26

Arup Adhikari

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