How insert multiple data using array - php

Question

I'm a newbie using php CodeIgniter. I can insert the array using php native. but how I can insert array using CodeIgniter, please? help me
I have a program for many checkboxes. if I checked more than 1 or checked all it's just still insert 1 data. its said success but just 1 data. so I want to insert more than 1. how can I do that's code? please fix it
this is my function order code from the controller :
public function order()
{
$this->form_validation->set_rules('id_sub', 'Id_sub', 'required|trim');
if ($this->form_validation->run() == false) {
$data['title'] = 'Order';
$data['user'] = $this->db->get_where('user', ['email' => $this->session->userdata('email')])->row_array();
$data["home"] = $this->product_model->getAll_join();
$this->load->view('templates/header', $data);
$this->load->view('templates/sidebar', $data);
$this->load->view('templates/topbar', $data);
$this->load->view('user/order', $data);
$this->load->view('templates/footer');
} else {
$data = [
'id_sub' => htmlspecialchars($this->input->post('id_sub', true))
];
$this->db->insert('tbl_order_detail', $data);
$this->session->set_flashdata('message', '<div class="alert alert-success" role="alert">Data berhasil disimpan.
</div>');
redirect('user/order');
}
}
this is my view order code :
<tbody>
<tr>
<td>
<?php
$query = $this->db->query("select tbl_referensi.referensi, tbl_sub_kategori.sub, tbl_sub_kategori.id_sub
from tbl_referensi
inner join tbl_sub_kategori
on tbl_referensi.id_ref = tbl_sub_kategori.id_ref
where tbl_referensi.id_ref = $tampil->id_ref;
");
foreach ($query->result() as $tampil_sub) :
?>
<input type="checkbox" aria-label="Checkbox for following text input" name="id_sub" id="id_sub" value="<?= $tampil_sub->id_sub ?>"> <label for="name" class="mr-4"><?= $tampil_sub->sub ?></label>
<?php endforeach; ?>
</td>
</tr>
</tbody>
i think the problem is from function order and tag HTML(name="id_sub") from view order. maybe using id_sub[].
but how? please fix it and help me.

Answer 1

Use this
<input type="checkbox" aria-label="Checkbox for following text input" name="id_sub[]" id="id_sub" value="<?= $tampil_sub->id_sub ?>"> <label for="name" class="mr-4"><?= $tampil_sub->sub ?></label>
and you will get value in controller using
$post_data = $this->input->post('id_sub');
foreach ($post_data as $key=>$value) {
// do your code
}

Answer 2

Here in html, input name should be an array
<input type="checkbox" aria-label="Checkbox for following text input" name="id_sub[]" id="id_sub" value="<?= $tampil_sub->id_sub ?>"> <label for="name" class="mr-4"><?= $tampil_sub->sub ?>
Mysql Query:
$data = [
'id_sub' => implode(',',$this->input->post('id_sub'))
];
$this->db->insert('tbl_order_detail',$data);