How to Catch variable when data no available - php

Question

I wan't to make Number of patient registration queue, I have trouble when data registration for today isn't available.
here is my code :
Controllers :
function index()
{
$this->load->helper('url');
$data['tbl_pendaftaran'] = $this->m_pendaftaran->getData()->result();
$data['pasien']=$this->m_pendaftaran->getPasien();
$data['kpendaftaran']=$this->m_pendaftaran->get_no_pendaftaran();
//status
$data['status'] = $this->m_pendaftaran->status()->result();
$this->template->load('template','pendaftaran/v_pendaftaran',$data);
}
Models :
function status()
{
$this->db->select('*');
$this->db->from('tbl_pendaftaran');
$this->db->join('tbl_pasien', 'tbl_pendaftaran.id_pasien = tbl_pasien.id');
$this->db->where('status','menunggu');
$this->db->limit(1);
return $this->db->get();
}
View :
<?php
foreach ($status as $key ) {
}
$cur = date("Y-m-d H:i:s",time());
if ($key->tgl_berobat<$cur) {
echo "No Patient for Today";
} else {
echo $key->no_antrian;
}
?>
here is result of Error when data for today Isn't available :
Severity: Notice
Message: Undefined variable: key
Filename: views/v_pendaftaran.php
Line Number: 22

Answer 1

Look like you have typing mistake here or you wrongly closed the foreach loop:
<?php
foreach ($status as $key ) {
}
$cur = date("Y-m-d H:i:s",time());
if ($key->tgl_berobat<$cur) {
echo "No Patient for Today";
} else {
echo $key->no_antrian;
}
?>
TRY THIS:
<?php
foreach ($status as $key ) {
$cur = date("Y-m-d H:i:s",time());
if ($key->tgl_berobat < $cur) {
echo "No Patient for Today";
} else {
echo $key->no_antrian;
}
}
?>
To respond to your comment try this way:
<?php
if(isset($status) && !empty($status)){
foreach ($status as $key ) {
$cur = date("Y-m-d H:i:s",time());
if ($key->tgl_berobat < $cur) {
echo "No Patient for Today";
} else {
echo $key->no_antrian;
}
}
} else {
echo "No Patient for Today";
}
//OR
if(isset($status) && !empty($status)){
foreach ($status as $key ) {
$cur = date("Y-m-d H:i:s",time());
if(isset($key->tgl_berobat) && !empty($key->tgl_berobat)){
if ($key->tgl_berobat < $cur) {
echo "No Patient for Today";
} else {
echo $key->no_antrian;
}
} else {
echo "No Patient for Today";
}
}
} else {
echo "No Patient for Today";
}
?>

Answer 2

I think the trouble is in your View.
Just change the code to
<?php
foreach ($status as $key ) {
$cur = date("Y-m-d H:i:s",time());
if ($key->tgl_berobat<$cur) {
echo "No Patient for Today";
} else {
echo $key->no_antrian;
}
}
?>

Answer 3

In your controller do not call result function, cause maybe there is no an object to result it.
function index()
{
.
.
.
//status
$data['status'] = $this->m_pendaftaran->status();
$this->template->load('template','pendaftaran/v_pendaftaran',$data);
}
In your check first if object exist or not:
<?php
if($status->num_rows()>0)
{
foreach ($status->result() as $key ) {
$cur = date("Y-m-d H:i:s",time());
if ($key->tgl_berobat<$cur) {
echo "No Patient for Today";
} else {
echo $key->no_antrian;
}
}
}
?>