Php/docs/function.db2-autocommit
db2_autocommit
(PECL ibm_db2 >= 1.0.0)
db2_autocommit — Returns or sets the AUTOCOMMIT state for a database connection
说明
db2_autocommit
( resource $connection
[, bool $value
] ) : mixed
Sets or gets the AUTOCOMMIT behavior of the specified connection resource.
参数
connection- A valid database connection resource variable as returned from db2_connect() or db2_pconnect().
value- One of the following constants:
DB2_AUTOCOMMIT_OFF- Turns AUTOCOMMIT off.
DB2_AUTOCOMMIT_ON- Turns AUTOCOMMIT on.
返回值
When db2_autocommit() receives only the
connection parameter, it returns the current state
of AUTOCOMMIT for the requested connection as an integer value. A value of
DB2_AUTOCOMMIT_OFF indicates that AUTOCOMMIT is off, while a value of DB2_AUTOCOMMIT_ON indicates that
AUTOCOMMIT is on.
When db2_autocommit() receives both the
connection parameter and
autocommit parameter, it attempts to set the
AUTOCOMMIT state of the requested connection to the corresponding state.
成功时返回 true， 或者在失败时返回 false。
范例
Example #1 Retrieving the AUTOCOMMIT value for a connection
In the following example, a connection which has been created with AUTOCOMMIT turned off is tested with the db2_autocommit() function.
<?php$options = array('autocommit' => DB2_AUTOCOMMIT_OFF);$conn = db2_connect($database, $user, $password, $options);$ac = db2_autocommit($conn);if ($ac == DB2_AUTOCOMMIT_OFF) { print "$ac -- AUTOCOMMIT is off.";} else { print "$ac -- AUTOCOMMIT is on.";}?>
以上例程会输出：
0 -- AUTOCOMMIT is off.
Example #2 Setting the AUTOCOMMIT value for a connection
In the following example, a connection which was initially created with AUTOCOMMIT turned off has its behavior changed to turn AUTOCOMMIT on.
<?php$options = array('autocommit' => DB2_AUTOCOMMIT_OFF);$conn = db2_connect($database, $user, $password, $options);// Turn AUTOCOMMIT on$rc = db2_autocommit($conn, DB2_AUTOCOMMIT_ON);if ($rc) { print "Turning AUTOCOMMIT on succeeded.\n";}// Check AUTOCOMMIT state$ac = db2_autocommit($conn);if ($ac == DB2_AUTOCOMMIT_OFF) { print "$ac -- AUTOCOMMIT is off.";} else { print "$ac -- AUTOCOMMIT is on.";}?>
以上例程会输出：
Turning AUTOCOMMIT on succeeded. 1 -- AUTOCOMMIT is on.
参见
- db2_connect() - Returns a connection to a database
- db2_pconnect() - Returns a persistent connection to a database
