global variable for all controller and views

Question

In Laravel I have a table settings and i have fetched complete data from the table in the BaseController, as following

public function __construct() 
{
             


        

Answer 1

Use the Config class:

Config::set('site_settings', $site_settings);

Config::get('site_settings');

http://laravel.com/docs/4.2/configuration

Configuration values that are set at run-time are only set for the current request, and will not be carried over to subsequent requests.

Answer 2

Okay, I'm going to completely ignore the ridiculous amount of over engineering and assumptions that the other answers are rife with, and go with the simple option.

If you're okay for there to be a single database call during each request, then the method is simple, alarmingly so:

class BaseController extends \Controller
{

    protected $site_settings;

    public function __construct() 
    {
        // Fetch the Site Settings object
        $this->site_settings = Setting::all();
        View::share('site_settings', $this->site_settings);
    }

}

Now providing that all of your controllers extend this BaseController, they can just do $this->site_settings.

If you wish to limit the amount of queries across multiple requests, you could use a caching solution as previously provided, but based on your question, the simple answer is a class property.

Answer 3

In Laravel 5+, to set a variable just once and access it 'globally', I find it easiest to just add it as an attribute to the Request:

$request->attributes->add(['myVar' => $myVar]);

Then you can access it from any of your controllers using:

$myVar = $request->get('myVar');

and from any of your blades using:

{{ Request::get('myVar') }}

Answer 4

In file - \vendor\autoload.php, define your gobals variable as follows, should be in the topmost line.

$global_variable = "Some value";//the global variable

Access that global variable anywhere as :-

$GLOBALS['global_variable'];

Enjoy :)

Answer 5

using middlwares

1- create middlware with any name

<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Support\Facades\View;

class GlobalData
{
    public function handle($request, Closure $next)
    {
        // edit this section and share what do you want
        $site_settings = Setting::all();
        View::share('site_settings', $site_settings);
        return $next($request);
    }
}

2- register your middleware in Kernal.php

protected $routeMiddleware = [
 .
 ...
 'globaldata' => GlobalData::class,
 ]

3-now group your routes with globaldata middleware

Route::group(['middleware' => ['globaldata']], function () {
//  add routes that need to site_settings
}

Answer 6

In Laravel, 5+ you can create a file in the config folder and create variables in that and use that across the app. For instance, I want to store some information based on the site. I create a file called site_vars.php, which looks like this

<?php
return [
    'supportEmail' => 'email@gmail.com',
    'adminEmail' => 'admin@sitename.com'
];

Now in the routes, controller, views you can access it using

Config::get('site_vars.supportEmail')

In the views if I this

{{ Config::get('site_vars.supportEmail') }}

It will give email@gmail.com

Hope this helps.

EDiT- You can also define vars in .env file and use them here. That is the best way in my opinion as it gives you the flexibility to use values that you want on your local machine.