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Website Programming in PHP / MYSQL
mysqli::autocommit
mysqli_autocommit
(PHP 5)
mysqli_autocommit — Turns on or off auto-commiting database modifications
Description
Object oriented style (method)
bool mysqli::autocommit
( bool $mode
)
Procedural style:
Turns on or off auto-commit mode on queries for the database connection.
To determine the current state of autocommit use the SQL command SELECT @@autocommit.
Parameters
- link
-
Procedural style only: A link identifier returned by mysqli_connect() or mysqli_init()
- mode
-
Whether to turn on auto-commit or not.
Return Values
Returns TRUE on success or FALSE on failure.
Notes
Note: This function doesn't work with non transactional table types (like MyISAM or ISAM).
Examples
Example #1 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();
?>
Example #2 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);
?>
The above example will output:
Autocommit is 1
