PHP - Manual: variant_cast
2025-10-25
(PHP 5, PHP 7, PHP 8)
variant_cast — Convert a variant into a new variant object of another 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.
This function wraps VariantChangeType() in the COM library; consult MSDN for more information.
Returns a variant of given type.
官方地址:https://www.php.net/manual/en/function.variant-cast.php