Need to insert a single data in the database - php

Question

I'm having a problem to insert a single data from my database
Example: I have two data's which is the question1 with ID:1 and question2: with ID:2. Those 2 questions does have different button. The problem is once I click the question1 or question2 button it inserting both of the ID's in my database.
Like this:
Here's My Controller
$data['posts'] = $this->Post_Model->get_posts();
$this->load->view('templates/header');
$this->load->view('posts/index', $data);
$this->load->view('templates/footer');
$this->load->library('form_validation');
if($this->form_validation->run()==FALSE) {
if($this->input->post("add")) {
$this->Post_Model->count_up();
redirect('posts');
}
}
My Model
function count_up(){
for($i=0; $i<count($this->input->post('hidden')); $i++){
$data = array(
'post_id' => $this->input->post("hidden[$i]")
);
$this->db->insert("userspost", $data);
}
}
My View
<?php
$iq = 0;
$i = 0;
$arrtry = array();
foreach($posts->result() as $post){
?>
<br>
<div class="card card-nav-tabs">
<div class="card-header card-header-primary">
<!-- colors: "header-primary", "header-info", "header-success", "header-warning", "header-danger" -->
<div class="nav-tabs-navigation">
<input class="form-control" value="<?php echo $arrtry[$iq++] = $post->id; ?>" name="hidden1[<?php $i; ?>]" type="hidden">
<input class="btn btn-primary" type="submit" name="add" value="UP" />
</div>
</div>
</div>
<?php
$i++;
}
?>
My problem is i want to insert question2 ID without inserting question1 ID. Hope you guys can help thanks!

Answer 1

What is happening is that you have all your inputs within the same form with multiple submit buttons.
I can imagine a few ways you could solve this:
Ajax way. Require some JS and another controller method.
One form for each button: So you will always have one $this->input->post('hidden'). No need to iterate over it.
With only one form You could set the button for something like this:
<input class="btn btn-primary" type="submit" name="add-up" value="<?= $i; ?>" />
So on your controller/model you can get the index that was clicked:
/* controller/model */
$index = $this->input->post('add-up');
$hidden_value = $this->input->post("hidden")[$index]