PHP扩展之XMLReader的示例分析

这篇文章给大家分享的是有关PHP扩展之XMLReader的示例分析的内容。小编觉得挺实用的，因此分享给大家做个参考，一起跟随小编过来看看吧。

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

• XMLReader::getAttributeNs - Get the value of an attribute by localname and URI

• XMLReader::getParserProperty - Indicates if specified property has been set

• XMLReader::isValid - Indicates if the parsed document is valid

• XMLReader::lookupNamespace - Lookup namespace for a prefix

• XMLReader::moveToAttribute - Move cursor to a named attribute

• XMLReader::moveToAttributeNo - Move cursor to an attribute by index

• XMLReader::moveToAttributeNs - Move cursor to a named attribute

• XMLReader::moveToElement - Position cursor on the parent Element of current Attribute

• XMLReader::moveToFirstAttribute - Position cursor on the first Attribute

• XMLReader::moveToNextAttribute - Position cursor on the next Attribute

• XMLReader::next - Move cursor to next node skipping all subtrees

• XMLReader::open - Set the URI containing the XML to parse

• XMLReader::read - Move to next node in document

• XMLReader::readInnerXML - Retrieve XML from current node

• XMLReader::readOuterXML - Retrieve XML from current node, including it self

• XMLReader::readString - Reads the contents of the current node as a string

• XMLReader::setParserProperty - Set parser options

• XMLReader::setRelaxNGSchema - Set the filename or URI for a RelaxNG Schema

• XMLReader::setRelaxNGSchemaSource - Set the data containing a RelaxNG Schema

• XMLReader::setSchema - Validate document against XSD

• XMLReader::XML - Set the data containing the XML to parse

感谢各位的阅读！关于"PHP扩展之XMLReader的示例分析"这篇文章就分享到这里了，希望以上内容可以对大家有一定的帮助，让大家可以学到更多知识，如果觉得文章不错，可以把它分享出去让更多的人看到吧！