下列常量由此扩展定义，且仅在此扩展编译入 PHP 或在运行时动态载入时可用。
| 常量 | 值 | 描述 | 说明 |
|---|---|---|---|
CLSCTX_INPROC_SERVER
(int)
|
1 | The code that creates and manages objects of this class is a DLL that runs in the same process as the caller of the function specifying the class context. | |
CLSCTX_INPROC_HANDLER
(int)
|
2 | The code that manages objects of this class is an in-process handler. This is a DLL that runs in the client process and implements client-side structures of this class when instances of the class are accessed remotely. | |
CLSCTX_LOCAL_SERVER
(int)
|
4 | The EXE code that creates and manages objects of this class runs on same machine but is loaded in a separate process space. | |
CLSCTX_REMOTE_SERVER
(int)
|
16 | A remote context. The code that creates and manages objects of this class is run on a different computer. | |
CLSCTX_SERVER
(int)
|
21 |
Indicates server code, whether in-process, local, or remote. This
definition ORs CLSCTX_INPROC_SERVER,
CLSCTX_LOCAL_SERVER, and
CLSCTX_REMOTE_SERVER.
|
|
CLSCTX_ALL
(int)
|
23 |
Indicates all class contexts. This definition ORs
CLSCTX_INPROC_HANDLER and
CLSCTX_SERVER.
|
|
VT_NULL
(int)
|
1 | NULL pointer reference. | |
VT_EMPTY
(int)
|
0 |
A property with a type indicator of VT_EMPTY has
no data associated with it; that is, the size of the value is zero.
|
|
VT_INT
(int)
|
22 |
4-byte signed integer value (equivalent to
VT_I4).
|
|
VT_I1
(int)
|
16 | 1-byte signed integer. | |
VT_I2
(int)
|
2 | Two bytes representing a 2-byte signed integer value. | |
VT_I4
(int)
|
3 | 4-byte signed integer value. | |
VT_I8
(int)
|
20 | 8-byte signed integer value. | Available as of PHP 7.0.0 (x64 only). |
VT_UINT
(int)
|
23 |
4-byte unsigned integer (equivalent to
VT_UI4).
|
|
VT_UI1
(int)
|
17 | 1-byte unsigned integer. | |
VT_UI2
(int)
|
18 | 2-byte unsigned integer. | |
VT_UI4
(int)
|
19 | 4-byte unsigned integer. | |
VT_UI8
(int)
|
21 | 8-byte unsigned integer. | Available as of PHP 7.0.0 (x64 only). |
VT_R4
(int)
|
4 | 32-bit IEEE floating point value. | |
VT_R8
(int)
|
5 | 64-bit IEEE floating point value. | |
VT_BOOL
(int)
|
11 | Boolean value. | |
VT_ERROR
(int)
|
10 | Error code; containing the status code associated with the error. | |
VT_CY
(int)
|
6 | 8-byte two's complement integer (scaled by 10,000). | |
VT_DATE
(int)
|
7 |
A 64-bit floating point number representing the number of days
(not seconds) since December 31, 1899. For example,
January 1, 1900, is 2.0, January 2, 1900,
is 3.0, and so on). This is stored in the same representation as
VT_R8.
|
|
VT_BSTR
(int)
|
8 | Pointer to a null-terminated Unicode string. | |
VT_DECIMAL
(int)
|
14 | A decimal structure. | |
VT_UNKNOWN
(int)
|
13 | A pointer to an object that implements the IUnknown interface. | |
VT_DISPATCH
(int)
|
9 | A pointer to a pointer to an object was specified. | |
VT_VARIANT
(int)
|
12 |
A type indicator followed by the corresponding value.
VT_VARIANT can be used only with
VT_BYREF.
|
|
VT_ARRAY
(int)
|
8192 |
If the type indicator is combined with
VT_ARRAY by an OR operator, the value is a pointer to a
SAFEARRAY. VT_ARRAY
can use the OR with the following data types: VT_I1,
VT_UI1, VT_I2, VT_UI2,
VT_I4, VT_UI4, VT_INT,
VT_UINT, VT_R4, VT_R8,
VT_BOOL, VT_DECIMAL, VT_ERROR,
VT_CY, VT_DATE, VT_BSTR,
VT_DISPATCH, VT_UNKNOWN and
VT_VARIANT.
|
|
VT_BYREF
(int)
|
16384 |
If the type indicator is combined with VT_BYREF
by an OR operator, the value is a reference. Reference types are
interpreted as a reference to data, similar to the reference type in
C++.
|
|
CP_ACP
(int)
|
0 | 默认为 ANSI 编码页。 | |
CP_MACCP
(int)
|
2 | Macintosh code page. | |
CP_OEMCP
(int)
|
1 | 默认为 OEM 编码页。 | |
CP_UTF7
(int)
|
65000 | Unicode (UTF-7). | |
CP_UTF8
(int)
|
65001 | Unicode (UTF-8). | |
CP_SYMBOL
(int)
|
42 |
SYMBOL translations.
|
|
CP_THREAD_ACP
(int)
|
3 | 当前线程的 ANSI 编码页 | |
VARCMP_LT
(int)
|
0 |
The left bstr is less than right
bstr.
|
|
VARCMP_EQ
(int)
|
1 | The two parameters are equal. | |
VARCMP_GT
(int)
|
2 |
The left bstr is greater than right
bstr.
|
|
VARCMP_NULL
(int)
|
3 | Either expression is NULL. | |
NORM_IGNORECASE
(int)
|
1 | Ignore case sensitivity. | |
NORM_IGNORENONSPACE
(int)
|
2 | Ignore nonspacing characters. | |
NORM_IGNORESYMBOLS
(int)
|
4 | Ignore symbols. | |
NORM_IGNOREWIDTH
(int)
|
131072 | Ignore string width. | |
NORM_IGNOREKANATYPE
(int)
|
65536 | Ignore Kana type. | |
NORM_IGNOREKASHIDA
(int)
|
262144 | Ignore Arabic kashida characters. | Availability is dependent upon under lying library. |
DISP_E_DIVBYZERO
(int)
|
-2147352558 | A return error that indicates a divide by zero error. | As of PHP 7.0.0, the value is 2147614738 on x64. |
DISP_E_OVERFLOW
(int)
|
-2147352566 | An error that indicates that a value could not be coerced to its expected representation. | As of PHP 7.0.0, the value is 2147614730 on x64. |
DISP_E_BADINDEX
(int)
|
-2147352565 | An error that indicates that an array index does not exist. | As of PHP 7.0.0, the value is 2147614731 on x64. |
MK_E_UNAVAILABLE
(int)
|
-2147221021 | iMoniker COM status code, return on errors where the function call failed due to unavailability. | As of PHP 7.0.0, the value is 2147746275 on x64. |