It's a relatively simple test, but you can use it to validate the structure and content of an XML document.

它是相对简单的一种测试，但也可以使用它来验证XML文档的结构和内容。

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The Document Object Model (DOM), is a platform- and language-neutral interface for dynamically accessing and updating the content, structure, and style of XML documents.

“文档对象模型（DOM）”是一个与平台和语言无关的接口，它用于动态访问和更新 XML 文档的内容、结构和样式。

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SimpleXML is built on the dynamic nature of PHP and simply provides an XML document as a data structure of anonymous PHP objects with properties and text content.

SimpleXML建立在PHP的动态特性基础上，并且提供一个XML文档作为带有属性和文本内容的匿名php对象的数据结构。

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