	<else>
	<elseif>
	<false>
	<if>
	<if accept>
	<if client>
	<if clientvar>
	<if config>
	<if cookie>
	<if date>
	<if defined>
	<if domain>
	<if exists>
	<if expr>
	<if false>
	<if group>
	<if internal-exists>
	<if ip>
	<if kerberos-auth>
	<if language>
	<if match>
	<if Match>
	<if module>
	<if pragma>
	<if prestate>
	<if referrer>
	<if sizeof>
	<if supports>
	<if time>
	<if true>
	<if type-from-data>
	<if type-from-filename>
	<if user>
	<if variable>
	<if Variable>
	<then>
	<true>

<if expr></if>

Provided by module: Tags: RXML tags

This plugin evaluates an expression and returns true if the result is anything but an integer or floating point zero.

Attributes

expr="expression": The expression to test. See the expr attribute to <set> for a description of the syntax.