Undefined Variable: rows and How to display image slider in Codeigniter 3 - codeigniter

Question

Please help me for this...I am learning CodeIgniter 3 and i got stuck on this error.
I am getting an error:
Notice: Undefined variable: slid and Invalid argument supplied for foreach(). Can anyone give me suggest to resolve this?
Controller : home.php
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Home extends CI_Controller {
function __construct()
{
parent::__construct();
}
function sliders(){
$slider = $this->slider_model->get_slider();
if ($slider){
$data['slid'] = $slider;
}
$this->template->display('home',$data);
}
}
Model : slider_model.php
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Slider_model extends CI_Model {
function __construct()
{
parent::__construct();
}
function get_slider()
{
$r = $this->db->get('slider');
$data = $r->result();
return $data;
}
}
View : home.php
<div id="slider" class="fixed">
<div class="background-slider"></div>
<div class="background">
<div class="shadow"></div>
<div class="pattern">
<div class="container" id="camera_1">
<div class="camera_slider">
<div class="spinner"></div>
<div class="camera_wrap" id="camera_wrap_1" style="height: 465px">
<?php foreach($slid as $r){ ?>
<div><img src="<?php echo base_url();?><?php echo $r->image?> " alt="Slider">
</div>
<?php } ?>
</div>
</div>
</div>
</div>
</div>
</div>
This is script of Js
< script type = "text/javascript" >
var camera_slider = $("#camera_wrap_1");
camera_slider.owlCarousel({
slideSpeed: 300,
lazyLoad: true,
singleItem: true,
autoPlay: 7000,
stopOnHover: true,
navigation: true
});
$(window).load(function() {
$("#camera_1 .spinner").fadeOut(200);
$("#camera_wrap_1").css("height", "auto");
}); < /script>

Answer 1

Please try in this code
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Home extends CI_Controller {
function __construct()
{
parent::__construct();
$this->load->model('slider_model');
}
function sliders(){
$slider = $this->slider_model->get_slider();
if ($slider){
$data['slid'] = $slider;
}
$this->template->display('home',$data);
}
}