Php/docs/sqlsrv.constants
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预定义常量
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。
SQLSRV_FETCH_ASSOC
(int)- Forces sqlsrv_fetch_array() to return an associative array when passed as a parameter.
SQLSRV_FETCH_NUMERIC
(int)- Forces sqlsrv_fetch_array() to return an array with numeric when passed as a parameter.
SQLSRV_FETCH_BOTH
(int)- Forces sqlsrv_fetch_array() to return an array with both associative and numeric keys when passed as a parameter (the default behavior).
SQLSRV_ERR_ALL
(int)- Forces sqlsrv_errors() to return both errors and warings when passed as a parameter (the default behavior).
SQLSRV_ERR_ERRORS
(int)- Forces sqlsrv_errors() to return errors only (no warnings) when passed as a parameter.
SQLSRV_ERR_WARNINGS
(int)- Forces sqlsrv_errors() to return warnings only (no errors) when passed as a parameter.
SQLSRV_LOG_SYSTEM_ALL
(int)- Turns on logging of all subsystems when passed to sqlsrv_configure() as a parameter.
SQLSRV_LOG_SYSTEM_CONN
(int)- Turns on logging of connection activity when passed to sqlsrv_configure() as a parameter.
SQLSRV_LOG_SYSTEM_INIT
(int)- Turns on logging of initialization activity when passed to sqlsrv_configure() as a parameter.
SQLSRV_LOG_SYSTEM_OFF
(int)- Turns off logging of all subsystems when passed to sqlsrv_configure() as a parameter.
SQLSRV_LOG_SYSTEM_STMT
(int)- Turns on logging of statement activity when passed to sqlsrv_configure() as a parameter.
SQLSRV_LOG_SYSTEM_UTIL
(int)- Turns on logging of error function activity when passed to sqlsrv_configure() as a parameter.
SQLSRV_LOG_SEVERITY_ALL
(int)- Specifies that errors, warnings, and notices will be logged when passed to sqlsrv_configure() as a parameter.
SQLSRV_LOG_SEVERITY_ERROR
(int)- Specifies that errors will be logged when passed to sqlsrv_configure() as a parameter.
SQLSRV_LOG_SEVERITY_NOTICE
(int)- Specifies that notices will be logged when passed to sqlsrv_configure() as a parameter.
SQLSRV_LOG_SEVERITY_WARNING
(int)- Specifies that warnings will be logged when passed to sqlsrv_configure() as a parameter.
SQLSRV_NULLABLE_YES
(int)- Indicates that a column is nullable.
SQLSRV_NULLABLE_NO
(int)- Indicates that a column is not nullable.
SQLSRV_NULLABLE_UNKNOWN
(int)- Indicates that it is not known if a column is nullable.
SQLSRV_PARAM_IN
(int)- Indicates an input parameter when passed to sqlsrv_query() or sqlsrv_prepare().
SQLSRV_PARAM_INOUT
(int)- Indicates a bidirectional parameter when passed to sqlsrv_query() or sqlsrv_prepare().
SQLSRV_PARAM_OUT
(int)- Indicates an output parameter when passed to sqlsrv_query() or sqlsrv_prepare().
SQLSRV_PHPTYPE_INT
(int)- Specifies an integer PHP data type. For usage information, see » How to: Specify PHP Types.
SQLSRV_PHPTYPE_DATETIME
(int)- Specifies a datetime PHP data type. For usage information, see » How to: Specify PHP Types.
SQLSRV_PHPTYPE_FLOAT
(int)- Specifies a float PHP data type. For usage information, see » How to: Specify PHP Types.
SQLSRV_PHPTYPE_STREAM
(int)- Specifies a PHP stream. This constant works like a function and accepts an encoding constant. See the SQLSRV_ENC_* constants. For usage information, see » How to: Specify PHP Types.
SQLSRV_PHPTYPE_STRING
(int)- Specifies a string PHP data type. This constant works like a function and accepts an encoding constant. See the SQLSRV_ENC_* constants. For usage information, see » How to: Specify PHP Types.
SQLSRV_ENC_BINARY
(int)- Specifies that data is returned as a raw byte stream from the server without performing encoding or translation. For usage information, see » How to: Specify PHP Types.
SQLSRV_ENC_CHAR
(int)- Data is returned in 8-bit characters as specified in the code page of the Windows locale that is set on the system. Any multi-byte characters or characters that do not map into this code page are substituted with a single byte question mark (?) character. This is the default encoding. For usage information, see » How to: Specify PHP Types.
UTF-8
(int)- Specifies that data is returned with UTF-8 encoding. For usage information, see » How to: Specify PHP Types.
SQLSRV_SQLTYPE_BIGINT
(int)- Describes the bigint SQL Server data type. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_BINARY
(int)- Describes the binary SQL Server data type. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_BIT
(int)- Describes the bit SQL Server data type. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_CHAR
(int)- Describes the char SQL Server data type. This constant works like a function and accepts a parameter indicating the number characters. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_DATE
(int)- Describes the date SQL Server data type. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_DATETIME
(int)- Describes the datetime SQL Server data type. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_DATETIME2
(int)- Describes the datetime2 SQL Server data type. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_DATETIMEOFFSET
(int)- Describes the datetimeoffset SQL Server data type. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_DECIMAL
(int)- Describes the decimal SQL Server data type. This constant works like a function and accepts two parameters indicating (in order) precision and scale. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_FLOAT
(int)- Describes the float SQL Server data type. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_IMAGE
(int)- Describes the image SQL Server data type. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_INT
(int)- Describes the int SQL Server data type. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_MONEY
(int)- Describes the money SQL Server data type. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_NCHAR
(int)- Describes the nchar SQL Server data type. This constant works like a function and accepts a single parameter indicating the character count. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_NUMERIC
(int)- Describes the numeric SQL Server data type. This constant works like a function and accepts two parameter indicating (in order) precision and scale. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_NVARCHAR
(int)- Describes the nvarchar SQL Server data type. This constant works like a function and accepts a single parameter indicating the character count. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_NVARCHAR
('max') (int)- Describes the nvarchar(MAX) SQL Server data type. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_NTEXT
(int)- Describes the ntext SQL Server data type. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_REAL
(int)- Describes the real SQL Server data type. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_SMALLDATETIME
(int)- Describes the smalldatetime SQL Server data type. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_SMALLINT
(int)- Describes the smallint SQL Server data type. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_SMALLMONEY
(int)- Describes the smallmoney SQL Server data type. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_TEXT
(int)- Describes the text SQL Server data type. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_TIME
(int)- Describes the time SQL Server data type. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_TIMESTAMP
(int)- Describes the timestamp SQL Server data type. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_TINYINT
(int)- Describes the tinyint SQL Server data type. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_UNIQUEIDENTIFIER
(int)- Describes the uniqueidentifier SQL Server data type. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_UDT
(int)- Describes the UDT SQL Server data type. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_VARBINARY
(int)- Describes the varbinary SQL Server data type. This constant works like a function and accepts a single parameter indicating the byte count. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_VARBINARY
('max') (int)- Describes the varbinary(MAX) SQL Server data type. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_VARCHAR
(int)- Describes the varchar SQL Server data type. This constant works like a function and accepts a single parameter indicating the character count. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_VARCHAR
('max') (int)- Describes the varchar(MAX) SQL Server data type. For usage information, see » How to: Specify SQL Types.
SQLSRV_SQLTYPE_XML
(int)- Describes the XML SQL Server data type. For usage information, see » How to: Specify SQL Types.
SQLSRV_TXN_READ_UNCOMMITTED
(int)- Indicates a transaction isolation level of READ UNCOMMITTED. This value is used to set the TransactionIsolation level in the $connectionOptions array passed to sqlsrv_connect().
SQLSRV_TXN_READ_COMMITTED
(int)- Indicates a transaction isolation level of READ COMMITTED. This value is used to set the TransactionIsolation level in the $connectionOptions array passed to sqlsrv_connect().
SQLSRV_TXN_REPEATABLE_READ
(int)- Indicates a transaction isolation level of REPEATABLE READ. This value is used to set the TransactionIsolation level in the $connectionOptions array passed to sqlsrv_connect().
SQLSRV_TXN_SNAPSHOT
(int)- Indicates a transaction isolation level of SNAPSHOT. This value is used to set the TransactionIsolation level in the $connectionOptions array passed to sqlsrv_connect().
SQLSRV_TXN_READ_SERIALIZABLE
(int)- Indicates a transaction isolation level of SERIALIZABLE. This value is used to set the TransactionIsolation level in the $connectionOptions array passed to sqlsrv_connect().
SQLSRV_CURSOR_FORWARD
(int)- Indicates a forward-only cursor. For usage information, see » Specifying a Cursor Type and Selecting Rows.
SQLSRV_CURSOR_STATIC
(int)- Indicates a static cursor. For usage information, see » Specifying a Cursor Type and Selecting Rows.
SQLSRV_CURSOR_DYNAMIC
(int)- Indicates a dynamic cursor. For usage information, see » Specifying a Cursor Type and Selecting Rows.
SQLSRV_CURSOR_KEYSET
(int)- Indicates a keyset cursor. For usage information, see » Specifying a Cursor Type and Selecting Rows.
SQLSRV_CURSOR_BUFFERED
(int)- Creates a client-side cursor query. Lets you access rows in any order. For usage information, see » Specifying a Cursor Type and Selecting Rows.
SQLSRV_SCROLL_NEXT
(int)- Specifies which row to select in a result set. For usage information, see » Specifying a Cursor Type and Selecting Rows.
SQLSRV_SCROLL_PRIOR
(int)- Specifies which row to select in a result set. For usage information, see » Specifying a Cursor Type and Selecting Rows.
SQLSRV_SCROLL_FIRST
(int)- Specifies which row to select in a result set. For usage information, see » Specifying a Cursor Type and Selecting Rows.
SQLSRV_SCROLL_LAST
(int)- Specifies which row to select in a result set. For usage information, see » Specifying a Cursor Type and Selecting Rows.
SQLSRV_SCROLL_ABSOLUTE
(int)- Specifies which row to select in a result set. For usage information, see » Specifying a Cursor Type and Selecting Rows.
SQLSRV_SCROLL_RELATIVE
(int)- Specifies which row to select in a result set. For usage information, see » Specifying a Cursor Type and Selecting Rows.