(PHP 5)variant_neg --

Performs logical negation on a variant

Description

mixed variant_neg (mixed variant)

Performs logical negation of variant and returns

the result.

Замечание:

As with all the variant arithmetic functions, the parameters for this function

can be either a PHP native type (integer, string, floating point, boolean or

NULL), or an instance of a COM, VARIANT or DOTNET class. PHP native types

will be converted to variants using the same rules as found in the constructor

for the VARIANT class. COM and DOTNET objects

will have the value of their default property taken and used as the variant value.

The variant arithmetic functions are wrappers around the similarly named

functions in the COM library; for more information on these functions, consult

the MSDN library. The PHP functions are named slightly differently; for example

variant_add() in PHP corresponds to VarAdd() in the MSDN documentation.