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Constants


Constants

Database and Statement Attributes Table

Attribute

Valid value(s)

PDO_ATTR_AUTOCOMMIT

BOOL

TRUE if autocommit is set, FALSE otherwise.

dbh->auto_commit contains value. Processed by PDO directly.

PDO_ATTR_PREFETCH

LONG

Value of the prefetch size in drivers that support it.

PDO_ATTR_TIMEOUT

LONG

How long to wait for a db operation before timing out.

PDO_ATTR_ERRMODE

LONG

Processed and handled by PDO

PDO_ATTR_SERVER_VERSION

STRING

The "human-readable" string representing the Server/Version this driver is currently connected to.

PDO_ATTR_CLIENT_VERSION

STRING

The "human-readable" string representing the Client/Version this driver supports.

PDO_ATTR_SERVER_INFO

STRING

The "human-readable" description of the Server.

PDO_ATTR_CONNECTION_STATUS

LONG

Values not yet defined

PDO_ATTR_CASE

LONG

Processed and handled by PDO.

PDO_ATTR_CURSOR_NAME

STRING

String representing the name for a database cursor for use in "where current in <name>" SQL statements.

PDO_ATTR_CURSOR

LONG

PDO_CURSOR_FWDONLY

Forward only cursor

PDO_CURSOR_SCROLL

Scrollable cursor

The values for the attributes above are all defined in terms of the Zend API. The Zend API contains macros that can be used to convert a *zval to a value. These macros are defined in the Zend header file, zend_API.h in the Zend directory of your PHP build directory. Some of these attributes can be used with the statement attribute handlers such as the PDO_ATTR_CURSOR and PDO_ATTR_CURSOR_NAME. See the statement attribute handling functions for more information.



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