function array_to_dot_notation(array $array, string $prefix = ''): array
{
    $result = [];
    foreach ($array as $key => $value) {
        $newKey = $prefix ? $prefix . '.' . $key : $key;
        if (is_array($value) && !empty($value)) {
            $result = array_merge($result, array_to_dot_notation($value, $newKey));
        } else {
            $result[$newKey] = $value;
        }
    }
    return $result;
}

$config = [
    'app' => [
        'name' => 'My App',
        'env' => 'production',
        'debug' => false
    ],
    'database' => [
        'host' => 'localhost',
        'port' => 3306
    ],
    'version' => '1.0.0'
];

// Example usage:
// $dotNotationConfig = array_to_dot_notation($config);
/*
Expected result:
[
    'app.name' => 'My App',
    'app.env' => 'production',
    'app.debug' => false,
    'database.host' => 'localhost',
    'database.port' => 3306,
    'version' => '1.0.0'
]
*/