use include laravel controller code example

Example 1: include a file in laravel controller

require_once __DIR__ . '/../app/Utilities/FileName.php';

Example 2: how to put external file in laravel listener class

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