PHP扩展之XMLWriter的示例分析
这篇文章主要介绍PHP扩展之XMLWriter的示例分析，文中介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们一定要看完！
一、概述及安装
This is the XMLWriter extension. It wraps the libxml xmlWriter API.
This extension represents a writer that provides a non-cached, forward-only means of generating streams or files containing XML data.
This extension can be used in an object oriented style or a procedural one. Every method documented describes the alternative procedural call.
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 XMLWriter extension was initially a PECL extension for PHP 5. It was later added to the PHP source (bundled) as of PHP 5.1.2. This extension is enabled by default.
此扩展默认为启用,编译时可通过下列选项禁用： --disable-xmlwriter
二、XMLWriter类及其成员函数
XMLWriter::endAttribute - End attribute
XMLWriter::endCData - End current CDATA
XMLWriter::endComment - Create end comment
XMLWriter::endDocument - End current document
XMLWriter::endDTDAttlist - End current DTD AttList
XMLWriter::endDTDElement - End current DTD element
XMLWriter::endDTDEntity - End current DTD Entity
XMLWriter::endDTD - End current DTD
XMLWriter::endElement - End current element
XMLWriter::endPI - End current PI
XMLWriter::flush - Flush current buffer
XMLWriter::fullEndElement - End current element
XMLWriter::openMemory - Create new xmlwriter using memory for string output
XMLWriter::openURI - Create new xmlwriter using source uri for output
XMLWriter::outputMemory - Returns current buffer
XMLWriter::setIndentString - Set string used for indenting
XMLWriter::setIndent - Toggle indentation on/off
XMLWriter::startAttributeNS - Create start namespaced attribute
XMLWriter::startAttribute - Create start attribute
XMLWriter::startCData - Create start CDATA tag
XMLWriter::startComment - Create start comment
XMLWriter::startDocument - Create document tag
XMLWriter::startDTDAttlist - Create start DTD AttList
XMLWriter::startDTDElement - Create start DTD element
XMLWriter::startDTDEntity - Create start DTD Entity
XMLWriter::startDTD - Create start DTD tag
XMLWriter::startElementNS - Create start namespaced element tag
XMLWriter::startElement - Create start element tag
XMLWriter::startPI - Create start PI tag
XMLWriter::text - Write text
XMLWriter::writeAttributeNS - Write full namespaced attribute
XMLWriter::writeAttribute - Write full attribute
XMLWriter::writeCData - Write full CDATA tag
XMLWriter::writeComment - Write full comment tag
XMLWriter::writeDTDAttlist - Write full DTD AttList tag
XMLWriter::writeDTDElement - Write full DTD element tag
XMLWriter::writeDTDEntity - Write full DTD Entity tag
XMLWriter::writeDTD - Write full DTD tag
XMLWriter::writeElementNS - Write full namespaced element tag
XMLWriter::writeElement - Write full element tag
XMLWriter::writePI - Writes a PI
XMLWriter::writeRaw - Write a raw XML text
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