Does a black question mark appear at the end when cropping text from a database?

Question

PHP

I output only the first 40 characters from the database and replace the rest with ellipsis, but at the end a question mark appears.

$str = $key['post_text'];
         if (strlen($str) > 40) $str = substr($str, 0, 40) . '...';

cut like this

despite the fact that I can.. - Ruzltat

Answer 1

mb_strlen and mb_substr.