Why is part of the page parsed normally, and part of it is parsed?

Question

Parsing

I'm trying to parse one site. Part of the data is normally downloaded from it, but data from some blocks is parsed like this:

$spravka = iconv("windows-1251", "utf-8", $spravka); After that, there's nothing left at all.

Answer 1

I think I got to the bottom of the problem. Some of the text is written in pure utf8, some is written using numerical HTML encoding of the Unicode character.
Example:
UTF8:Sber
HTML: Сбер=Sber

$doc->loadHTML(mb_convert_encoding($body, 'HTML-ENTITIES', 'UTF-8'));