Note: This manual is provided for your convenience only - this is not the official source and may not be 100% up to date.

mysqli_autocommit

mysqli_autocommit

(PHP 5)

mysqli_autocommit

(no version information, might be only in CVS)

mysqli->autocommit() -- Turns on or off auto-commiting database modifications

Description

Procedural style:

bool mysqli_autocommit ( mysqli link, bool mode )

Object oriented style (method)

class mysqli {

bool autocommit ( 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. 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