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# Predefined Constants

The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.

The following constants to use with maxdb_options() are defined. For further description of these constants see » http://maxdb.sap.com/documentation/.

MaxDB PHP client constants
Constant | Description
--- | ---
MAXDB_COMPNAME | The component name used to initialise the SQLDBC runtime environment.
MAXDB_APPLICATION | The application to be connected to the database.
MAXDB_APPVERSION | The version of the application.
MAXDB_SQLMODE | The SQL mode.
MAXDB_UNICODE | TRUE, if the connection is an unicode (UCS2) client or FALSE, if not.
MAXDB_TIMEOUT | The maximum allowed time of inactivity after which the connection to the database is closed by the system.
MAXDB_ISOLATIONLEVEL | Specifies whether and how shared locks and exclusive locks are implicitly requested or released.
MAXDB_PACKETCOUNT | The number of different request packets used for the connection.
MAXDB_STATEMENTCACHESIZE | The number of prepared statements to be cached for the connection for re-use.
MAXDB_CURSORPREFIX | The prefix to use for result tables that are automatically named.

The function maxdb_fetch_array() uses a constant for the different types of result arrays. The following constants are defined:

MaxDB fetch constants
Constant | Description
--- | ---
MAXDB_ASSOC | Columns are returned into the array having the fieldname as the array index.
MAXDB_ASSOC_UPPER | Columns are returned into the array having the upper case fieldname as the array index.
MAXDB_ASSOC_LOWER | Columns are returned into the array having the lower case fieldname as the array index.
MAXDB_BOTH | Columns are returned into the array having both a numerical index and the fieldname as the array index.
MAXDB_NUM | Columns are returned into the array having a numerical index to the fields. This index starts with 0, the first field in the result.

Resource Types
Examples
MaxDB
PHP Manual