xsl:variable

Variables can be defined on any level.

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl:variable name="variable-name" select="'variable-value'"/>
</xsl:stylesheet>
					

To use the variable value in the xslt use '$variable-name'

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl:variable name="variable-name" select="'variable-value'"/>
  
  <xsl:template name="test">
    <xsl:value-of select="$variable-name"/>
  </xsl:template>
</xsl:stylesheet>
					

It is not possible to change the value of a variable!