CodeIgniter - $this->input->post only returns a single value in array when multiple items were changed

Question

I'm trying out CodeIgniter (I'm a novice coder) and am having some trouble with POST data from a form.

I have the following code to generate a form:

<div>
	<?php echo form_open('todos/update_completed/'); ?>
	<?php foreach ($todos as $todo): ?>
		<?php echo form_checkbox('completed', $todo->id, $todo->completed); ?>
		<?php echo $todo->task; ?>
		<?php echo "<br />"; ?>
	<?php endforeach ?>
	<br />
	<?php echo form_submit('MySubmit', 'Update ToDos'); ?>
	<?php echo form_close(); ?>
</div>

This generates the following code:

<form action="http://localhost:8091/index.php/todos/update_completed" method="post" accept-charset="utf-8">


  <input name="completed" value="1" type="checkbox">Go to the shops
  <br>

  <input name="completed" value="2" checked="checked" type="checkbox">Pick up camera
  <br>

  <input name="completed" value="5" checked="checked" type="checkbox">Call Joey
  <br>

  <input name="completed" value="6" checked="checked" type="checkbox">Fill in tax return
  <br>

  <br>

  <input name="MySubmit" value="Update ToDos" type="submit">

</form>

When I try to retrieve the POST data using:

$completed_todos = array(); 
$completed_todos[] = $this->input->post_get('completed');

... I allways get an array ($completed_todos) which only contains 1 (one) element - regardless how many checkboxes I checked, and it is always the latest checkbox I checked!

print_r($completed_todos); only returns the following: Array ( [0] => 6 )

Can someone please explain why I am not getting all the checkbox values returned in my array?

ps: I am following a tutorial from https://selftaughtcoders.com/creating-processing-form-codeigniter/

Chamath Nimantha · Accepted Answer · 2016-03-18 08:27:27Z

3

If there are multiple CheckBoxes with same name you should write as below

Your Check Boxes

<input name="completed" value="1" type="checkbox">

Have to change the name like this name="completed[]"

<input name="completed[]" value="1" type="checkbox">
<input name="completed[]" value="2" checked="checked" type="checkbox">
<input name="completed[]" value="5" checked="checked" type="checkbox">
<input name="completed[]" value="6" checked="checked" type="checkbox">

answered Mar 18, 2016 at 8:27

Chamath Nimantha

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3 Comments

Bjorn Over a year ago

I have seen this as a possible solution, but when using <?php echo form_checkbox('completed', $todo->id, $todo->completed); ?> as instructed by the CodeIgniter framework, the brackets aren't added. Would this imply that there is a bug in the CodeIgniter code?

Chamath Nimantha Over a year ago

You can use plain HTML tags instead of using codeigniter form.

Bjorn Over a year ago

I have posted this question to the CodeIgniter forum to ask whether the form_checkbox('completed', $todo->id, $todo->completed); can be used for array values as well.

Revathi Krishna K · Accepted Answer · 2016-03-18 08:39:02Z

0

You need to pass the checkboxes that is selected right? So make small modifications in your view

<input name="completed[]" value="1" type="checkbox">Go to the shops
  <br>
  <input name="completed[]" value="2" checked="checked" type="checkbox">Pick up camera
  <br>
  <input name="completed[]" value="5" checked="checked" type="checkbox">Call Joey
  <br>
  <input name="completed[]" value="6" checked="checked" type="checkbox">Fill in tax return
  <br>
  <br>
  <input name="MySubmit" value="Update ToDos" type="submit">

answered Mar 18, 2016 at 8:39

Revathi Krishna K

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Comments

Revathi Krishna K · Accepted Answer · 2016-03-18 08:45:58Z

-1

In your controller access the checked values using following code

if(isset($_POST['MySubmit']))
{
    $checkbox_value=$_POST['completed'];
    var_dump($checkbox_value);
}

answered Mar 18, 2016 at 8:45

Revathi Krishna K

4310 bronze badges

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