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variant_cast

variant_cast

(PHP 5)

variant_castConvert a variant into a new variant object of another type

说明

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.

This function wraps VariantChangeType() in the COM library; consult MSDN for more information.

参数

variant

The variant.

type

type should be one of the VT_XXX constants.

返回值

Returns a VT_DATE variant.

参见


  • com_addref
  • com_create_guid
  • com_event_sink
  • com_get
  • com_get_active_object
  • com_invoke
  • com_isenum
  • com_load
  • com_load_typelib
  • com_message_pump
  • com_print_typeinfo
  • com_propget
  • com_propput
  • com_propset
  • com_release
  • com_set
  • variant_abs
  • variant_add
  • variant_and
  • variant_cast
  • variant_cat
  • variant_cmp
  • variant_date_from_timestamp
  • variant_date_to_timestamp
  • variant_div
  • variant_eqv
  • variant_fix
  • variant_get_type
  • variant_idiv
  • variant_imp
  • variant_int
  • variant_mod
  • variant_mul
  • variant_neg
  • variant_not
  • variant_or
  • variant_pow
  • variant_round
  • variant_set
  • variant_set_type
  • variant_sub
  • variant_xor
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