(PHP 8 >= 8.4.0)
Represents an XML document.
注意: While the DOMDocument class allows setting certain properties to influence parser behaviour, this class only uses the
LIBXML_*
constants to configure the parser.
An attribute specifying, as part of the XML declaration, the
encoding of this document. This is null
when unspecified or when it
is not known, such as when the Document was created in memory.
An attribute specifying, as part of the XML declaration, whether
this document is standalone.
This is false
when unspecified.
A standalone document is one where there are no external markup declarations.
An example of such a markup declaration is when the DTD declares an attribute with a default value.
An attribute specifying, as part of the XML declaration, the version number of this document. If there is no declaration and if this document supports the "XML" feature, the value is "1.0".
注意: 此 DOM 扩展在处理方法或属性时使用 UTF-8 编码。 解析器方法会自动检测编码,或允许调用者指定编码。