Incomprehensible characters when transferring data to the database, how to fix?

Question

PHP

I enter data into the database. Those data that come from the post request are added to the database in the form of Тульчин . And in general, even if you create a variable and insert a string there, transfer it - the result is similar. But if you write the line "test" in the request for additions, it is displayed adequately in the database. What's the matter?

Answer 1

$dbh = new PDO("чтототам",  $user, $password);
$dbh->exec("set names utf8"); // добавить эту строку

Answer 2

Check encodings. I'm not sure exactly on Java + MySQL met with the fact that instead of Russian letters it outputs strange characters to the console