how to convert array value to string and save to database - php

Question

I have trouble, how to save array value in database, Each time I enter data only the last data stored in the database.
here is my code :
Controller :
function tambah_rm($id)
{
$this->load->helper('form');
$this->load->library('form_validation');
$data['title'] = 'Tambah Detail Rekam Medis';
$this->form_validation->set_rules('tgl_berobat', 'tgl_berobat', 'required');
$this->form_validation->set_rules('anamnesa', 'anamnesa', 'required');
$this->form_validation->set_rules('diagnosa', 'diagnosa', 'required');
$this->form_validation->set_rules('therapi', 'therapi', 'required');
$this->form_validation->set_rules('keterangan', 'keterangan', 'required');
if ($this->form_validation->run() === FALSE)
{
$data['obat']=$this->m_pasien->get_obat();
$data['header']=$this->m_pasien->header_pasien($id)->row_array();
$this->template->load('template','v_tambahRM',$data);
}
else
{
$this->m_pasien->tambahrm($data);
redirect('pasien');
}
}
My Model :
function tambahrm()
{
$this->load->helper('url');
$username = trim($this->session->userdata('id_user'));
$data = array(
'tgl_berobat' => $this->input->post('tgl_berobat'),
'anamnesa' => $this->input->post('anamnesa'),
'diagnosa' => $this->input->post('diagnosa'),
'therapi' => $this->input->post('therapi'),
'keterangan' => $this->input->post('keterangan'),
'id_user' => $username,
'id_pasien' => $this->input->post('id_pasien'),
);
if ($id == 0) {
return $this->db->insert('tbl_riwayat', $data);
} else {
$this->db->where('id', $id);
return $this->db->update('tbl_riwayat', $data);
}
}
function get_obat()
{
$data_obat = array();
$this->db->select('nama_obat');
$this->db->from('tbl_obat');
$query = $this->db->get();
if ($query->num_rows() > 0) {
foreach ($query->result_array() as $row) {
$data_obat[] = $row;
}
}
return $data_obat;
}
View
<div class="form-group m-b-20">
<div class="col-xs-12">
<label for="therapi">Therapi</label>
<select class=" form-control js-example-basic-multiple" multiple="multiple" name="diagnosa">
<?php
foreach($obat as $option)
{
?>
<option value="<?=$option['nama_obat']?>"><?=$option['nama_obat']?></option>
<?php
}
?>
</select>
</div>
</div>
And this is a screenshoot of data stored in the database, which I put yellow color is the last data I input in multiple select field.

Answer 1

Php have multiple option to convert array into string some of the option you can try are listed below.
implode() /explode()
json_encode() / json_decode()
serialize() / unserialize()
Above answer telling you how to convert array into serialized . So i only mention other two option in my answer.
to convert the array into a string and back:
#Option one
function tambahrm()
{
$this->load->helper('url');
$username = trim($this->session->userdata('id_user'));
$data = array(
'tgl_berobat' => $this->input->post('tgl_berobat'),
'anamnesa' => $this->input->post('anamnesa'),
'diagnosa' => json_encode($this->input->post('diagnosa')),
'therapi' => $this->input->post('therapi'),
'keterangan' => $this->input->post('keterangan'),
'id_user' => $username,
'id_pasien' => $this->input->post('id_pasien'),
);
if ($id == 0) {
return $this->db->insert('tbl_riwayat', $data);
} else {
$this->db->where('id', $id);
return $this->db->update('tbl_riwayat', $data);
}
}
function get_obat()
{
$data_obat = array();
$this->db->select('nama_obat');
$this->db->from('tbl_obat');
$query = $this->db->get();
if ($query->num_rows() > 0) {
foreach ($query->result_array() as $row) {
$row['diagnosa'] = json_decode($row['diagnosa'],true);
$data_obat[] = $row;
}
}
return $data_obat;
}
#option two
function tambahrm()
{
$this->load->helper('url');
$username = trim($this->session->userdata('id_user'));
$data = array(
'tgl_berobat' => $this->input->post('tgl_berobat'),
'anamnesa' => $this->input->post('anamnesa'),
'diagnosa' => implode(",",$this->input->post('diagnosa')),
'therapi' => $this->input->post('therapi'),
'keterangan' => $this->input->post('keterangan'),
'id_user' => $username,
'id_pasien' => $this->input->post('id_pasien'),
);
if ($id == 0) {
return $this->db->insert('tbl_riwayat', $data);
} else {
$this->db->where('id', $id);
return $this->db->update('tbl_riwayat', $data);
}
}
function get_obat()
{
$data_obat = array();
$this->db->select('nama_obat');
$this->db->from('tbl_obat');
$query = $this->db->get();
if ($query->num_rows() > 0) {
foreach ($query->result_array() as $row) {
$row['diagnosa'] = explode(",",$row['diagnosa']);
$data_obat[] = $row;
}
}
return $data_obat;
}
First option using explode and implode and second option is using json_encode and decode.
you can use any option according to your requirement. But i personally suggest you json encode or serialized pick from this two as they do not change key index of any type of array .

Answer 2

You can use
json_encode() / json_decode()
serialize() / unserialize()
to convert the array into a serialized string and back:
function tambahrm()
{
$this->load->helper('url');
$username = trim($this->session->userdata('id_user'));
$data = array(
'tgl_berobat' => $this->input->post('tgl_berobat'),
'anamnesa' => $this->input->post('anamnesa'),
'diagnosa' => json_encode($this->input->post('diagnosa')),
'therapi' => $this->input->post('therapi'),
'keterangan' => $this->input->post('keterangan'),
'id_user' => $username,
'id_pasien' => $this->input->post('id_pasien'),
);
if ($id == 0) {
return $this->db->insert('tbl_riwayat', $data);
} else {
$this->db->where('id', $id);
return $this->db->update('tbl_riwayat', $data);
}
}
function get_obat()
{
$data_obat = array();
$this->db->select('nama_obat');
$this->db->from('tbl_obat');
$query = $this->db->get();
if ($query->num_rows() > 0) {
foreach ($query->result_array() as $row) {
$row['diagnosa'] = json_decode($row['diagnosa']) ?: null;
$data_obat[] = $row;
}
}
return $data_obat;
}
For reference, see:
http://php.net/manual/en/function.json-encode.php
http://php.net/manual/en/function.json-decode.php
http://php.net/manual/en/function.serialize.php
http://php.net/manual/en/function.unserialize.php