I am trying to set a global variable in Laravel, I set in __construct() function but can not use this outside of controller.
Where should I set that variable?
public function __construct()
{
$cat = Categories::get()->first();
}
but I can't access the $cat variable in some pages.
If you want to access $cat variable everywhere i.e in all controllers and views you should share it as below:
protected $cat;
public function __construct()
{
$this->cat = Categories::get()->first();
View::share('site_settings', $this->cat);
}
I will assume that you are using BaseController constructor. Now if your controllers extend this BaseController, they can just access the category using $this->cat.
Second Method:
You can also give a try using Config class. All you need to do is add the following code within boot method of app/Providers/AppServiceProvider.php
Config::set(['user' => ['name' => 'John Doe']]);
Then any where in your project you can fetch the value by using Config::get('user.name');
Use service providers
https://hdtuto.com/article/laravel-5-global-variable-in-all-views-file
app/Providers/AppServiceProvider.php
<?php
namespace App\Providers;
use Illuminate\Support\ServiceProvider;
class AppServiceProvider extends ServiceProvider
{
/**
* Bootstrap any application services.
*
* @return void
*/
public function boot()
{
view()->share('siteTitle', 'HDTuto.com');
}
/**
* Register any application services.
*
* @return void
*/
public function register()
{
//
}
}
and in your view
{{ $siteTitle }}
You may also use solution, which is as given below:
App::before(function($request) {
App::singleton('cat', function(){
return Categories::get()->first();
});
});
Now to get data in controller using below line;
$cat = app('cat');
and you can pass data in view using below line:
view('home', compact('cat'));
