Laravel: Where to store global arrays data and constants?

For most constants used globally across the application, storing them in config files is sufficient. It is also pretty simple

Create a new file in the app/config directory. Let's call it constants.php

In there you have to return an array of config values.

return [
    'langs' => [
        'es' => 'www.domain.es',
        'en' => 'www.domain.us'
        // etc
    ]
];

And you can access them as follows

Config::get('constants.langs');
// or if you want a specific one
Config::get('constants.langs.en');

And you can set them as well

Config::set('foo.bar', 'test');

Note that the values you set will not persist. They are only available for the current request.

Update

The config is probably not the right place to store information generated from the database. You could just use an Eloquent Model like:

class Category extends Eloquent {
    // db table 'categories' will be assumed
}

And query all categories

Category::all();

If the whole Model thing for some reason isn't working out you can start thinking about creating your own class and a facade. Or you could just create a class with all static variables and methods and then use it without the facade stuff.

Create common constants file in Laravel

app/constants.php

    define('YOUR_CONSTANT_VAR', 'VALUE');

    //EX
    define('COLOR_TWO', 'red');

composer.json add file location at autoload in composer.json

"autoload": {
    "files": [
        "app/constants.php"
    ]
}

Before this change can take effect, you must run the following command in Terminal to regenerate Laravel’s autoload files:

composer dump-autoload

For Constants

Create constants.php file in the config directory:-

define('YOUR_DEFINED_CONST', 'Your defined constant value!');

return [

'your-returned-const' => 'Your returned constant value!'

];

You can use them like:-

echo YOUR_DEFINED_CONST . '<br>';

echo config('constants.your-returned-const');

For Static Arrays

Create static_arrays.php file in the config directory:-

class StaticArray
{

    public static $langs = [
        'es' => 'www.domain.es',
        'en' => 'www.domain.us',
        'uk' => 'www.domain.uk',
        'br' => 'www.domain.br',
        'it' => 'www.domain.it',
        'de' => 'www.domain.de',
        'fr' => 'www.domain.fr'
    ];

}

You can use it like:-

echo StaticArray::$langs['en'];

Note: Laravel includes all config files automatically, so no need of manual include :)