How to declare global variables available to all Blade Files?

Question

I have products in a database that are essentially used on every single page. Instead of having to query the database, something like this:

$products = DB::table("products")->get();

And then passing it into view:

return view("site.products", array(
   'products' => $products,
));

I don't want to do this for every view. Instead, I want $products to be available to ALL templates by default... so that I can do this:

@foreach ($products as $product) 
 ... etc

How would I declare it in a global way to achieve this?

Did you tried using sessions as a global variable. Or use a package called session. — adil zakarya, Aug 03 '21 at 10:43
Or this? https://stackoverflow.com/questions/45807512/global-variable-in-laravel-blade — Nico Haase, Aug 03 '21 at 10:47
Or this? https://stackoverflow.com/questions/68371540/global-variable-in-laravel-8 — Nico Haase, Aug 03 '21 at 10:48
Or this? https://laravel.com/docs/8.x/views#sharing-data-with-all-views — Nico Haase, Aug 03 '21 at 10:48

SEYED BABAK ASHRAFI · Answer 1 · 2021-08-03T10:39:53.637

2

You can add below code in the boot method of AppServiceProvider

public function boot()
{
    if (!$this->app->runningInConsole()) {
        $products = DB::table("products")->get();
        \View::share('products', $products);
    }
}

Read more from here

edited Aug 03 '21 at 10:39

answered Aug 03 '21 at 10:34

SEYED BABAK ASHRAFI

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score 1 · Accepted Answer · answered Aug 03 '21 at 10:45

A recommended way of doing this is to add a middleware that you apply to all the routes that you want to affect.

Middleware

use Closure;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\View;

class GlobalVariablesMiddleware
{
    $myVariable = "Value For Everyone";
    View::share(['globalValue' => $myVariable]);
}

Add it to your kernel.php in the Http folder

protected $routeMiddleware = [
        ...
        'myMiddleware' => \App\Http\Middleware\ GlobalVariablesMiddleware::class,
];

Once this is setup, you can easily apply it to individual routes or grouped ones to achieve what you are looking for

// Routes that will have the middleware    
Route::middleware(['myMiddleware'])->group(function () {
    
        // My first route that will have the global value
        Route::resource('/profile', App\Http\Controllers\ProfileController::class);

        // My second route that will have the global value
        Route::resource('/posts', App\Http\Controllers\PostController::class);
    });

By doing it this way, you can easily control the data in the future if you would chose not to have the data global.

How to declare global variables available to all Blade Files?

2 Answers2