Codeigniter subdomain wildcard get account every method - php

Question

I'm using Codeigniter with dynamic subdomains, but in each method of my controllers I need to get the account of the dynamic subdomain. I'm looking for a way to get the domain and add to the $data without to it every method like:
<?php
class Dashboard extends CI_Controller {
function index()
{
$subdomain_arr = explode('.', $_SERVER['HTTP_HOST'], 2);
$subdomain_name = $subdomain_arr[0];
$this->db->from('accounts')->where('subdomain', $subdomain_name);
$query = $this->db->get();
$account = $query->row();
$data['account_id'] = $account->id;
$data['account_name'] = $account->name;
$this->load->view('index', $data);
}
function clients()
{
$subdomain_arr = explode('.', $_SERVER['HTTP_HOST'], 2);
$subdomain_name = $subdomain_arr[0];
$this->db->from('accounts')->where('subdomain', $subdomain_name);
$query = $this->db->get();
$account = $query->row();
$data['account_id'] = $account->id;
$data['account_name'] = $account->name;
$this->load->view('clients', $data);
}
}

Answer 1

Do it once within a Class Constructor and then you can access the same variables from all of the other methods.
As per docs:
"Constructors are useful if you need to set some default values, or run a default process when your class is instantiated. Constructors can't return a value, but they can do some default work."
<?php
class Dashboard extends CI_Controller {
public $data = array();
public function __construct()
{
parent::__construct();
$subdomain_arr = explode('.', $_SERVER['HTTP_HOST'], 2);
$subdomain_name = $subdomain_arr[0];
$this->db->from('accounts')->where('subdomain', $subdomain_name);
$query = $this->db->get();
$account = $query->row();
$this->data['account_id'] = $account->id;
$this->data['account_name'] = $account->name;
}
public function index()
{
$data = $this->data; // contains your values from the constructor above
$data['title'] = "My Index"; // also use your $data array as normal
$this->load->view('index', $data);
}
public function clients()
{
$data = $this->data; // contains your values from the constructor above
$this->load->view('clients', $data);
}
}
NOTE: Even though CodeIgniter functions default to "public", it's best practice to declare them as such. See: Public functions vs Functions in CodeIgniter