Question

Here’s a bit of code from a codeigniter View:

   <li>
      <label>Assign volunteer to event:</label><br />
      <? foreach ($all_vols as $vol) :?>
        <?=form_checkbox('volunteers', $vol) ?>
        <?=$vol['username']?>
        <br />
      <? endforeach ?>  
    </li>

I’m expecting there to be an array named volunteers in the $_POST variable. Instead, what I’m getting is 'volunteers' => string('array'). Any thoughts what is happening here?

Answer 1

You cannot use an array as a second argument of form_checkbox() when used in this way, and $vol is likely to be an array as you use $vol['username'] later on. You’re confounding the form helper, which takes the first parameter to be used as the ‘name’ attribute and the second as its ‘value’.

Try:

<? foreach ($all_vols as $vol) :?>
        <?=form_checkbox('volunteers[]', $vol['username']) ?>
        <?=$vol['username']?>
        <br />
<? endforeach ?>