PHP - Manual: db2_autocommit
2024-11-13
db2_autocommit
(PECL ibm_db2 >= 1.0.0)
db2_autocommit — Returns or sets the AUTOCOMMIT state for a database connection
说明
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
示例 #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.
示例 #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
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官方地址：https://www.php.net/manual/en/function.db2-autocommit.php
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