Show data from multiple checkbox in codeigniter - codeigniter

Question

i hope all of you can help me to solve my application problem
my problem is when i would like to show data from my multiple checkbox , data success to show but just showing my first data that i have check.
example is i check data 1 , data 2 , data 3, but the only data 1 are showing on my page.
my controller :
function comparison()
{
if ($this->input->post('submit')) {
foreach ($id_product = $this->input->post('id_product') as $rm) {
$show_compare = $this->Compare->start_compare($rm);
}
$data['comparison'] = $show_compare;
$data['title'] = "Comparison";
$data['meta_keywords'] = ". . .";
$data['meta_descriptions'] = ". . .";
$this->load->view('theme/comparison',$data);
}
}
My Model :
function start_compare($id_product)
{
$this->db->select('product.id_subcategory,product.type,product.product_name,specificcategory.specificcategory_name,specification_biostar.*');
$this->db->join('specification_biostar', 'specification_biostar.id_product = product.id_product', 'left');
$this->db->join('specificcategory', 'specificcategory.id_specificcategory = product.id_subcategory', 'left');
$this->db->where('product.id_product', $id_product);
$sql = $this->db->get('product')->result_array();
return $sql;
}
my view (option multiple-checkbox) :
<div class="box-body">
<input type="checkbox" name="id_product[]" id="txt" onClick="EnableSubmit3(this)" value="<?php echo $row['id_product']; ?>"><label>Choose</label>
</div>
my view (result data) :
<table class="table">
<?php foreach ($comparison as $row){ ?>
<tr>
<td colspan="2"><?php echo $row['id_product'] ?></td>
</tr>
<?php } ?>
</table>

Answer 1

in your code take $show_compare = array(); before foreach loop and use array_push in foreach.
$show_compare = array();
foreach ($id_product = $this->input->post('id_product') as $rm) {
array_push($show_compare,$this->Compare->start_compare($rm));
}
$data['comparison'] = $show_compare;