Summary

Usage

is_set( target )

Parameters

Returns

Description

This operator checks if the value of the target parameter is a non-false value (meaning that it is set). If it is, the operator will return TRUE, otherwise FALSE will be returned. Please note that this operator does not take an input parameter.

Examples

Example 1

{if is_set( $whatever )}
    It is set.
{else}
    It is not set.
{/if}

The following output will be produced: "It is not set." - because $whatever is not declared and/or defined.

Example 2

{def $whatever='We need more rocket fuel!'}
{if is_set( $whatever )}
    It is set.
{else}
    It is not set.
{/if}

The following output will be produced: "It is set.".