Message: Call to a member function result_array() on float - php

Question

I want to display the results of the $ distance variable to the table in the view file.
But I get an error in my script, can anyone help solve this error?
I also want to sort the results of the $ distance variable from the smallest.
Error appears in line 38, which is in the foreach function in my view file.
This is the script from my controller file :
function index()
{
$center_lat = -7.2574719;
$center_lng = 112.7520883;
$data= $this->m_metode->tampil_data_fotografer();
{
foreach($data->result_array() as $row)
{
$lat=(float)$row['latitude'];
$lng=(float)$row['longitude'];
// $distance= $lat * $center_lat;
$distance['tb_fotografer'] =( 6371 * acos((cos(deg2rad($center_lat)) ) * (cos(deg2rad($lat))) *
(cos(deg2rad($lng) - deg2rad($center_lng)) )+ ((sin(deg2rad($center_lat))) *
(sin(deg2rad($lat))))));
// var_dump($distance);
}
}
$this->load->view('public/pencari/v_tampil_rekomendasi',$distance);
}
My view :
<?php
$no = 1;
foreach($tb_fotografer->result_array() as $fg){
?>
<tr>
<td><?php echo $no++ ?></td>
<td><?php echo $fg->nama ?></td>
<td><?php echo $fg->alamat ?></td>
<td><?php echo $fg->kamera ?></td>
<td><?php echo $fg->spesifikasi_foto ?></td>
<td><?php echo $fg->keahlian_foto ?></td>
<td><?php echo $fg->latitude ?></td>
<td><?php echo $fg->longitude ?></td>
</tr>
<?php } ?>

Answer 1

This variable "$tb_fotografer" store a float value not an array, and you can not access with result_array(). you must store as an array like this:
$distance['tb_fotografer'][] = ( 6371 * acos((cos(deg2rad($center_lat)) ) * (cos(deg2rad($lat))) *
(cos(deg2rad($lng) - deg2rad($center_lng)) )+ ((sin(deg2rad($center_lat))) *
(sin(deg2rad($lat))))));
base on your view field you needed to send $data to your view file.
$this->load->view('public/pencari/v_tampil_rekomendasi',['tb_fotografer' => $data->result_array()]);
and in your view file:
foreach($tb_fotografer as $fg){
for sort you can store data in another variable like $output and put distance on it, after that you can sort with this method: usort($array, "cmp");
after all the steps you can send to your view.
final code:
function index()
{
$center_lat = -7.2574719;
$center_lng = 112.7520883;
$data= $this->m_metode->tampil_data_fotografer();
$out = []
{
foreach($data->result_array() as $row)
{
$lat=(float)$row['latitude'];
$lng=(float)$row['longitude'];
// $distance= $lat * $center_lat;
$distance =( 6371 * acos((cos(deg2rad($center_lat)) ) * (cos(deg2rad($lat))) *
(cos(deg2rad($lng) - deg2rad($center_lng)) )+ ((sin(deg2rad($center_lat))) *
(sin(deg2rad($lat))))));
$out[] = array_merge($row, ['distance' => $distance]);
}
}
// #todo use usort for sort base on distance
$this->load->view('public/pencari/v_tampil_rekomendasi',['tb_fotografer' => $out]);
}

Answer 2

You've overwritten the $distance['tb_fotografer'] variable on each iteration and also you've accessed object on array data.
Try to modify the controller like this :
function index()
{
$center_lat = -7.2574719;
$center_lng = 112.7520883;
$data= $this->m_metode->tampil_data_fotografer();
{
foreach($data->result_array() as $key => $row)
{
$lat=(float)$row['latitude'];
$lng=(float)$row['longitude'];
// $distance= $lat * $center_lat;
$distance['tb_fotografer'][$key][] = $row; // get all of the preserved result_array data
$distance['tb_fotografer'][$key][]['distance'] = ( 6371 * acos((cos(deg2rad($center_lat)) ) * (cos(deg2rad($lat))) *
(cos(deg2rad($lng) - deg2rad($center_lng)) )+ ((sin(deg2rad($center_lat))) *
(sin(deg2rad($lat))))));
// var_dump($distance);
}
}
$this->load->view('public/pencari/v_tampil_rekomendasi',$distance);
}
And the v_tampil_rekomendasi view like this :
<?php
$no = 1;
foreach($tb_fotografer as $fg){
?>
<tr>
<td><?php echo $no++ ?></td>
<td><?php echo $fg['nama'] ?></td>
<td><?php echo $fg['alamat'] ?></td>
<td><?php echo $fg['kamera'] ?></td>
<td><?php echo $fg['spesifikasi_foto'] ?></td>
<td><?php echo $fg['keahlian_foto'] ?></td>
<td><?php echo $fg['latitude'] ?></td>
<td><?php echo $fg['longitude'] ?></td>
<td><?php echo $fg['distance'] ?></td>
</tr>
<?php } ?>