XMLReader
Установка и настройка
XMLReader
PHP Manual

# Введение

The XMLReader extension is an XML Pull parser. The reader acts as a cursor going forward on the document stream and stopping at each node on the way.

## Encoding

It is important to note that internally, libxml uses the UTF-8 encoding and as such, the encoding of the retrieved contents will always be in UTF-8 encoding.

XMLReader
Установка и настройка
XMLReader
PHP Manual