add helper to laravel code example

Example 1: laravel add utility class

# How to register utilities class on Laravel 5.8
# File: composer.json
# ref: https://stackoverflow.com/questions/28290332/best-practices-for-custom-helpers-in-laravel-5
"autoload": {
    "classmap": [
        ...
    ],
    "psr-4": {
        "App\\": "app/"
    },
    "files": [
        "app/helpers.php" // <---- ADD THIS
    ]
},
 
 # Then run: `composer dump-autoload`

Example 2: how to share a helper globally laravel

php artisan make:provider HelperServiceProvider

Example 3: add custom helper laravel

"autoload": {
    "files": [
        "app/helpers.php"
    ],
    "classmap": [
        "database/seeds",
        "database/factories"
    ],
    "psr-4": {
        "App\\": "app/"
    }
},

Example 4: add custom helper laravel

"autoload": {
    "classmap": [
        "database/seeds",
        "database/factories"
    ],
    "psr-4": {
        "App\\": "app/"
    }
},
"autoload-dev": {
    "psr-4": {
        "Tests\\": "tests/"
    }
},