XML Declaration

XML declaration is a processing instruction, that identifies the document as XML.

Syntax

<?xml

 version="version_number"

 encoding="encoding_declaration"

 standalone="standalone_status" ?>

Attribute	Possible Value	Description
version	1.0 or 1.1	Specifies the version of XML document.
encoding	UTF-8, UTF-16, ISO-10646-UCS-2, ISO-10646-UCS-4, ISO-8859-1 to ISO-8859-9, ISO-2022-JP, Shift_JIS, EUC-JP	Character encoding supports by XML document.
standalone	yes, no	'yes' represents XML has internal DTD. 'no' represents XML document is linked to an external DTD.

Note :

1.           The XML declaration has no closing tag, that is </?xml>

2.           In XML 1.0, the XML Declaration is optional. But from XML 1.1, XML declaration is mandatory.

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