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mysqli::autocommit

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mysqli_autocommit

(PHP 5, PHP 7)

mysqli::autocommit -- mysqli_autocommit — Turns on or off auto-committing database modifications

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Description

Object oriented style

mysqli::autocommit ( bool $mode ) : bool

Procedural style

mysqli_autocommit ( mysqli $link , bool $mode ) : bool

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.

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Parameters

link

Procedural style only: A link identifier returned by mysqli_connect() or mysqli_init()

mode

Whether to turn on auto-commit or not.

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Return Values

Returns TRUE on success or FALSE on failure.

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Notes

Note:

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

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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

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See Also

Find a PHP function

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Document created the 30/01/2003, last modified the 26/10/2018
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References

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