php xmlreader 安装,PHP扩展之XML操作（四）——XMLReader

操作（四）——XMLReader"/>

php xmlreader 安装,PHP扩展之XML操作（四）——XMLReader

一、概述及安装

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.

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.

此扩展需要 libxml PHP 扩展。这表示需要使用 --enable-libxml ，尽管这将隐式完成因为 libxml 是缺省开启的。

The XMLReader extension was initially a PECL extension for PHP 5. It was later moved to the PHP source (bundled) as of PHP 5.1.0, and later enabled by default as of PHP 5.1.2.

此扩展默认为启用,编译时可通过下列选项禁用： --disable-xmlreader

二、XMLReader类及其成员函数XMLReader::close — Close the XMLReader input

XMLReader::expand — Returns a copy of the current node as a DOM object

XMLReader::getAttribute — Get the value of a named attribute

XMLReader::getAttributeNo — Get the value of an attribute by index