mb_sprintf_printf.php

<?php declare(strict_types=1);
function mb_sprintf($format, ...$args): string
{
    $params = $args;

    return sprintf(
        preg_replace_callback(
            '/(?<=%|%-)\d+(?=s)/',
            static function ($length) use (&$params) {
                $value = array_shift($params);

                return strlen($value) - mb_strlen($value) + $length[0];
            },
            $format
        ),
        ...$args
    );
}

function mb_printf($format, ...$args): void
{
    print mb_sprintf($format, ...$args);
}