variant_set_type
(PHP 5, PHP 7)
variant_set_type — Convert a variant into another type "in-place"
Описание
This function is similar to variant_cast() except that the variant is modified "in-place"; no new variant is created. The parameters for this function have identical meaning to those of variant_cast().
Список параметров
-
variant -
The variant.
-
type -
Возвращаемые значения
Эта функция не возвращает значения после выполнения.
- PHP Руководство
- Функции по категориям
- Индекс функций
- Справочник функций
- Расширения только для Windows
- COM и .Net (Windows)
- com_create_guid
- com_event_sink
- com_get_active_object
- com_load_typelib
- com_message_pump
- com_print_typeinfo
- 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_type
- variant_set
- variant_sub
- variant_xor
Коментарии
In my application I was using ADODB to retrieve data from Microsoft Access. During queries, fields defined as "Date/Time" in Access were being returned to PHP as instances of the Variant class.
For some reason, the variant_date_to_timestamp function returned incorrect timestamps. As a workaround, I used variant_set_type($variant, VT_BSTR) to get a string representation of the date. This can be used for most variant types PHP doesn't handle.