Codeginiter retriveing values of checked checkbox - php

Question

Im developing form application. Inside the form there are textboxes,textarea, checkboxes checkboxes are populated according to array. and i pass all the form values to controller . Values of textboxes, texarea print correctly. Problem is there only prints last value of checked checkbox. how do i print all checked box values. please help me & please find the code i used.
askQuestion.php (view)
<?php echo form_open('homepage/test'); ?>
<p>
<div>
<div class="form-group">
Question Title:<br/>
<input type="text" value="" name="">
</p>
<div>
<div class="form-group">
<p>
Description: <br/>
<textarea name="decription" rows="5" cols="100"> </textarea>
</p>
<?php
$chk_group =array('1' => 'red',
'2' => 'aa',
'3' => 'bb',
'4' => 'cc',
'5' => 'dd'
);
var_dump($chk_group);
for ($i=1 ; $i<=count($chk_group);$i++)
{
$val =$chk_group[$i];
echo "<br>";
echo '<input type="checkbox" value="' . $val . '" name="chk_group">' . $val;
echo "</br>";
}
?>
</div>
<div class="form-group">
Declare new Tags:<br/>
<input type="text" value="" name="tag">
</p>
</div>
<p>
<input type="submit" class="btn btn-success btn-block" value="Post Your Question" id="postQuestion">
</p>
<?php echo form_close();?>
homepage.php (controller)
public function test() {
echo "test";
$name = $this->input->post('tag');
print_r($name);
$des = $this->input->post('decription');
print_r($des);
$data = $this->input->post('chk_group');
var_dump($data);
/* foreach ($this->input->post('chk_group') as $r) {
echo $r;
}
*/
}

Answer 1

You should use array to name the check boxes. You used loop to generate the check boxes & used same name for all. For this you got only last one value.
echo '<input type="checkbox" value="' . $val . '" name="chk_group[]">' . $val;