mysqli::autocommit
mysqli::autocommit
mysqli_autocommit
(PHP 5, PHP 7)
mysqli::autocommit -- mysqli_autocommit — Turns on or off auto-committing database modifications
Description
Object oriented style
bool mysqli::autocommit ( bool $mode )
Procedural style
bool mysqli_autocommit ( mysqli $link , bool $mode )
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 mysqli::autocommit() example
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();
?> 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 examples will output:
Autocommit is 1
See Also
- mysqli_begin_transaction() - Starts a transaction
- mysqli_commit() - Commits the current transaction
- mysqli_rollback() - Rolls back current transaction
© 1997–2017 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://secure.php.net/manual/en/mysqli.autocommit.php
