Unset variable

XML

<unset var="var" key="(no key)"/>

<unset /> unsets a variable.

These three statements are semantically equivalent:

XML

					<unset var="var[key]"/>
					<unset var="var.key"/>
					<unset var="var" key="key"/>

Attention:

The TYPEOF operation will subsequently return 'undefined' for this variable.

Attributes

Name	Type	Description	Defined By
var	var	Variable name	unset
key	string	Key	unset

Examples

Unsetting variable

XML

<unset var="var"/>

Unsetting array item implicitly

XML

<unset var="var[key]"/>

Unsetting array item explicitly

XML

<unset var="var" key="key"/>