add the following to composer.json
"autoload": { "psr-4": { "App\\": "src/" } }
App
will preface all your namespaces and src/
is your directory with files to autoload.
eg:
namespace App\Util\Whatever;
Now generate autoload.php
composer dump-autoload -o
In core PHP file include autload.php
require_once('vendor/autoload.php');
Then simply give each file a namespace matching its directory and use \App\Helpers\Whatever;
to load classes