(PHP 4 >= 4.1.0, PHP 5, PHP 7, PHP 8)
variant::__construct — variant class constructor
Constructs a new variant object.
value
null
an VT_EMPTY object is created.
type
VT_*
预定义常量.
PHP can detect parameters passed by reference
automatically; they do not even need to be passed as variant objects.
Consult the MSDN library for additional information
on the VARIANT type.
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