mysqli_autocommit ne fonctionne pas avec les types de tables non transactionnelles. (Comme MyISAM ou ISAM.)

Pour vérifier l'état de l'autocommit, utilisez la commande SQL 'SELECT @@autocommit'.

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

if (mysqli_connect_errno()) {
    printf("Echec de la connexion : %s\n", mysqli_connect_error());
    exit();
}

/* Activation de l'autocommit */
$mysqli->autocommit(TRUE);

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

/* Fermeture de la connexion */
$mysqli->close();
?>

<?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();
}

/* Activation de l'autocommit */
mysqli_autocommit($link, TRUE);

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

/* Fermeture de la connexion */
mysqli_close($link);
?>