mysqli_autocommit

Turns on or off auto-commiting database modifications (PHP 5)
bool mysqli_autocommit ( mysqli link, bool mode )

Procedural style:

Object oriented style (method)

mysqli {
  bool autocommit(bool mode);
}

mysqli_autocommit() is used to turn on or off auto-commit mode on queries for the database connection represented by the link object.

注意:

mysqli_autocommit() doesn't work with non transactional table types (like MyISAM or ISAM).

To determine the current state of autocommit use the SQL command 'SELECT @@autocommit'.

返回值

如果成功则返回 TRUE,失败则返回 FALSE

范例

例 1248. Object oriented style

<?php
$mysqli
= new mysqli("localhost", "my_user", "my_password", "world");

if (
mysqli_connect_errno()) {
   
printf("Connect failed: %s\n", mysqli_connect_error());
   exit();
}

/* turn autocommit on */
$mysqli->autocommit(TRUE);

if (
$result = $mysqli->query("SELECT @@autocommit")) {
   
$row = $result->fetch_row();
   
printf("Autocommit is %s\n", $row[0]);
   
$result->free();
}

/* close connection */
$mysqli->close();
?>

例 1249. Procedural style

<?php
$link
= mysqli_connect("localhost", "my_user", "my_password", "world");

if (!
$link) {
   
printf("Can't connect to localhost. Error: %s\n", mysqli_connect_error());
   exit();
}

/* turn autocommit on */
mysqli_autocommit($link, TRUE);

if (
$result = mysqli_query($link, "SELECT @@autocommit")) {
   
$row = mysqli_fetch_row($result);
   
printf("Autocommit is %s\n", $row[0]);
   
mysqli_free_result($result);
}

/* close connection */
mysqli_close($link);
?>

上例将输出:

Autocommit is 1