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PHP5中文手册
variant_cast(PHP 5) variant_cast — Convert a variant into a new variant object of another type Description
variant variant_cast
( variant $variant
, int $type
)
This function makes a copy of variant and then performs a variant cast operation to force the copy to have the type given by type . type should be one of the VT_XXX constants. This function wraps VariantChangeType() in the COM library; consult MSDN for more information. See also variant_set_type(). |