Value passing as null from view to controller - php

Question

The id is passing correctly but the post value is returning as empty , Please suggest with a solution what mistake i am doing here
Here is my view
<?php for($i=0;$i<count($array['value']);$i++) { ?>
<?php $id= $room['value'][$i]['Index']; ?>
<ul >
<li>
<?php echo form_open('cont/arraylist/'.$id); ?>
<input type="hidden" name="<?php echo 'foo'.$i ?>" value="<?php echo $room['value'][$i]['foo']?>" />
<input type="hidden" name="<?php echo 'boo'.$i?>" value="<?php echo $room['value'][$i]['boo']?>" />
<input type="hidden" name="<?php echo 'bar'.$i?>" value="<?php echo $room['value'][$i]['bar']?>" />
<input type="hidden" name="<?php echo 'baba'.$i?>" value="<?php echo $room['value'][$i]['baba']?>" />
<input type="submit" />
<?php echo form_close(); ?>
</li>
</ul>
<?php } ?>
Here is My controller
function arraylist($id)
{
echo $id;
echo $this->input->post('foo'.$id);
echo $this->input->post('boo'.$id);
echo $this->input->post('bar'.$id);
echo $this->input->post('baba'.$id);
}

Answer 1

You are trying get the input name 'foo'.$id but in view you are concatenating 'foo'.$i. This occurs to all. Do this:
<input type="hidden" name="<?php echo 'foo'.$id ?>" value="<?php echo $room['value'][$i]['foo']?>" />
<input type="hidden" name="<?php echo 'boo'.$id?>" value="<?php echo $room['value'][$i]['boo']?>" />
<input type="hidden" name="<?php echo 'bar'.$id?>" value="<?php echo $room['value'][$i]['bar']?>" />
<input type="hidden" name="<?php echo 'baba'.$id?>" value="<?php echo $room['value'][$i]['baba']?>" />