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<else>
<elseif>
<false>
<if>
<then>
<true>
<if accept>
<if client>
<if clientvar>
<if config>
<if cookie>
<if date>
<if domain>
<if exists>
<if expr>
<if false>
<if group>
<if ip>
<if language>
<if match>
<if ppoint>
<if pragma>
<if prestate>
<if referrer>
<if supports>
<if time>
<if true>
<if user>
<if variable>
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If plugin
"variable"
Does the variable exist and, optionally, does it's content match the
pattern? Variable is an Eval plugin.
Attributes
- variable
variable=name[ is pattern]
-
Choose variable to test. Valid operators are '=', '==', 'is', '!=',
'<' and '>'.
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