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Laravel 5.5 : How to define global variable that can be used in all controllers ?

Hello Developers & Coders ,

My question is How to define a global variable , that can be used in
all controllers in Laravel ?

I have defined one variable $company in AppServiceProviders's boot method - that im using in all blade views , but I can not use it in controllers file , it gives error , undefined variable $company

$company

undefined variable $company

class AppServiceProvider extends ServiceProvider

/**
* Bootstrap any application services.
*
* @return void
*/
public function boot()

View::share('key', 'value');
Schema::defaultStringLength(191);

$company=DB::table('company')->where('id',1)->first();
View::share('company',$company);



/**
* Register any application services.
*
* @return void
*/
public function register()

//





please guide me , thanks for your efforts & time :)

3 Answers
3

set configuration variables at runtime

class AppServiceProvider extends ServiceProvider

/**
* Bootstrap any application services.
*
* @return void
*/
public function boot()

View::share('key', 'value');
Schema::defaultStringLength(191);

$company=DB::table('company')->where('id',1)->first();
// View::share('company',$company);
config(['yourconfig.company' => $company]);




usage:

config('yourconfig.company');


Set a variable to session

Session::set('company', $company);


To get the variable when you use

$company = Session::get('company');


Okay, so unless you want to keep it in your Session, which I absolutely do not recommend, Cache which does not seem to be a best idea either or set it through the Config system inside of a Framework (which already are 3 different solutions suited for different matters) I would start from thinking what that variable will contain, if that's something that's just a Collection of Company model then you can basically use it in any controller by just using Laravel Eloquent methods.

What I recommend is either $company = Company::where('foo', 'bar')->first();, or just some data provider that would return all the information that you need in the form of Laravel Collection.

$company = Company::where('foo', 'bar')->first();

tl;dr

#recommended way that's reusable throughout whole app
Company::find(1); // instead of DB::table('company')->where('id', 1)->get();


Hope that helps.

Company::find(1);

DB::table('company')->where('id', 1)->get();

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