is_null__
Description
Checks if a variable is null.
Works the same as PHP’s native is_null() function. If $var is not set, an Undefined variable notice will be thrown.
Usage
<?php
use function Qubus\Support\Helpers\is_null__;
is_null__(mixed $var): bool;
Parameters
$var (mixed) (required) Variable to check.
Return Value
(bool) Returns true if null, false otherwise.
