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Vordefinierte Konstanten

Vordefinierte Konstanten

Folgende Konstanten werden von dieser Erweiterung definiert und stehen nur zur Verfügung, wenn die Erweiterung entweder statisch in PHP kompiliert oder dynamisch zur Laufzeit geladen wurde.

**COM constants**
Constant	Value	Description	Notes
`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	Default to ANSI code page.
`CP_MACCP` (int)	2	Macintosh code page.
`CP_OEMCP` (int)	1	Default to OEM code page.
`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	Current thread's ANSI code page
`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.