Post the id on delete in codeigniter - php

Question

I have two tables users and posts where is the primary key is id. When i click on delete button, i want to post the id.
Here is my view:
<table class="table">
<thead class="thead-dark">
<tr>
<th scope="col">Title</th><th scope="col">Hit</th>
<th scope="col">Edit</th><th scope="col">Delete</th><th scope="col">Read More</th>
</tr>
</thead>
<tbody>
<?php foreach($posts as $post) : ?>
<?php if($this->session->userdata('username') == $_SESSION["username"]): ?>
<tr>
<td><?php echo $post['title']; ?> </td>
<td><?php echo $post['post_views']; ?></td>
<td><a class="btn btn-default" href="<?php echo base_url(); ?>posts/edit/<?php echo $post['slug']; ?>">Edit</a></td>
<td>
<?php echo form_open('/posts/delete/'.$post['id']); ?>
<input type="submit" value="Delete" class="btn btn-danger">
<input type="hidden" name="id" value="<?php echo $post['id'] ?>" />
</form>
</td>
<td><p><a class="btn btn-default" href="<?php echo site_url('/posts/'.$post['slug']); ?>">Read More</a></p></td>
</tr>
<?php endif; ?>
<?php endforeach; ?>
</tbody>
</table>

Answer 1

There are so many ways to do this, the best most common one is to get it from the url like this:
$id = #end($this->uri->segment_array());
Or this:
$id = $this->uri->segment(3);
Or you can do this by passing it in a hidden input like this:
<?php echo form_open('/posts/delete/'.$post['id']); ?>
<input type="submit" value="Delete" class="btn btn-danger">
<input type="hidden" name="id" value="<?php echo $post['id'] ?>" />
</form>
Or using ajax.

Answer 2

delete link with confimation
Delete
call delete method in js and then show confimation msg.

Answer 3

Why you are using form tag to call a function? You can do this with anchor tag easily and can pass id. This one line code will work perfectly
<td><a class="btn btn-danger" href="<?= site_url('posts/delete/'.$post['id']) ?>">Delete</a></td>
In controller delete function will be like this
public function delete($id){
echo $id;
}