Error after making virtual host - php

Question

I have a project developed in Codeigniter. It works fine when I try to access it on the browser at localhost using localhost/bmlivenew. But after making its virtual host, when I access it on the browser using www.bmlivenew.com , it displays the website but at the top of it, it shows an error
A PHP Error was encountered
Severity: Notice
Message: Undefined variable: designer_images
Filename: controllers/Designs.php
Line Number: 42
Backtrace:
File: /var/www/html/bmlivenew/application/controllers/Designs.php
Line: 42
Function: _error_handler
File: /var/www/html/bmlivenew/index.php
Line: 324
Function: require_once
Whereas, the variable $designer_images is properly defined and it does not throw such an error if I try to access the website using localhost/bmlivenew.
Bunch of codes where I have defined the $designer_images in the Designs controller.
$designers = $this->interior_images_m->get_by($cond);
foreach ($designers as $key => $designer) {
$designer_images = $this->interior_new_m->get_by(array('id'=>$designer->name));
$designers[$key]->images = $designer_images;
}
$this->data['names'] = $designer_images;
$this->data['designers'] = $designers;
// Load View
$this->load->view("frontend/ourdesign",$this->data);
Any help is welcome.

Answer 1

Hope this will help you :
initialise $designer_images first, above foreach loop
Should be like this :
$designers = $this->interior_images_m->get_by($cond);
$designer_images = NULL;
foreach ($designers as $key => $designer)
{
$designer_images = $this->interior_new_m->get_by(array('id' => $designer->name));
$designers[$key]->images = $designer_images;
}
$this->data['names'] = $designer_images;
$this->data['designers'] = $designers;