have
function
The have action checks for variables existance. It belongs to the logicfn category within the system area.
Action Syntax
have $variable
A variable name starting with $
Return Value
This function returns a
BOOLEAN
value that can be stored in a variable:
$result = have Valid sizes
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Examples
// Basic Usage
$boolean = have $varnameAction code: 2548611569
Version: 0.6.4-2
Last updated: 2025-06-13