How to make the first letter lowercase?

Question

PHP

I'm trying to make the first letter of $tag->name lowercase. Tried like this

$name = sprintf($tag->name);
var_dump($name);
if ($video) {
  ?>
    <h2>Видео
      <?echo strtolower($name)?>
    </h2>
    <?
} else {
  
}

But nothing happened. Did I make it a string?
var_dump($name) gives this:
string(10) "Кухни"

Answer 1

<?php
$name='Кухни';
var_dump(mb_strtolower($name));