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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。

DB2_BINARY (int)
Specifies that binary data shall be returned as is. This is the default mode.
DB2_CONVERT (int)
Specifies that binary data shall be converted to a hexadecimal encoding and returned as an ASCII string.
DB2_PASSTHRU (int)
Specifies that binary data shall be converted to a null value.
DB2_SCROLLABLE (int)
Specifies a scrollable cursor for a statement resource. This mode enables random access to rows in a result set, but currently is supported only by IBM DB2 Universal Database.
DB2_FORWARD_ONLY (int)
Specifies a forward-only cursor for a statement resource. This is the default cursor type and is supported on all database servers.
DB2_PARAM_IN (int)
Specifies the PHP variable should be bound as an IN parameter for a stored procedure.
DB2_PARAM_OUT (int)
Specifies the PHP variable should be bound as an OUT parameter for a stored procedure.
DB2_PARAM_INOUT (int)
Specifies the PHP variable should be bound as an INOUT parameter for a stored procedure.
DB2_PARAM_FILE (int)
Specifies that the column should be bound directly to a file for input.
DB2_AUTOCOMMIT_ON (int)
Specifies that autocommit should be turned on.
DB2_AUTOCOMMIT_OFF (int)
Specifies that autocommit should be turned off.
DB2_DOUBLE (int)
Specifies that the variable should be bound as a DOUBLE, FLOAT, or REAL data type.
DB2_LONG (int)
Specifies that the variable should be bound as a SMALLINT, INTEGER, or BIGINT data type.
DB2_CHAR (int)
Specifies that the variable should be bound as a CHAR or VARCHAR data type.
DB2_CASE_NATURAL (int)
Specifies that column names will be returned in their natural case.
DB2_CASE_LOWER (int)
Specifies that column names will be returned in lower case.
DB2_CASE_UPPER (int)
Specifies that column names will be returned in upper case.
DB2_DEFERRED_PREPARE_ON (int)
Specifies that deferred prepare should be turned on for the specified statement resource.
DB2_DEFERRED_PREPARE_OFF (int)
Specifies that deferred prepare should be turned off for the specified statement resource.