mysqli_multi_query

(PHP 5)

mysqli_multi_query

mysqli->multi_query - Выполняет множественный запрос к базе данных.

Процедурный стиль вызова:

bool mysqli_multi_query ( mysqli link, string query )

Объектно-ориентированный стиль вызова (method):

class mysqli {
bool multi_query ( string query )
}

The mysqli_multi_query() executes one or multiple queries which are concatenated by a semicolon.

To retrieve the resultset from the first query you can use mysqli_use_result() or mysqli_store_result(). All subsequent query results can be processed using mysqli_more_results() and mysqli_next_result().

Возвращаемые значения

mysqli_multi_query() only returns FALSE if the first statement failed. To retrieve subsequent errors from other statements you have to call mysqli_next_result() first.

Примеры

Пример 1. Объектно-ориентированный стиль вызова

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

/* check connection */
if (mysqli_connect_errno()) {
    printf("Connect failed: %s\n", mysqli_connect_error());
    exit();
}

$query  = "SELECT CURRENT_USER();";
$query .= "SELECT Name FROM City ORDER BY ID LIMIT 20, 5";

/* execute multi query */
if ($mysqli->multi_query($query)) {
    do {
        /* store first result set */
        if ($result = $mysqli->store_result()) {
            while ($row = $result->fetch_row()) {
                printf("%s\n", $row[0]);
            }
            $result->close();
        }
        /* print divider */
        if ($mysqli->more_results()) {
            printf("-----------------\n");
        }
    } while ($mysqli->next_result());
}

/* close connection */
$mysqli->close();

Пример 2. Процедурный стиль вызова

$link = mysqli_connect("localhost", "my_user", "my_password", "world");

/* check connection */
if (mysqli_connect_errno()) {
    printf("Connect failed: %s\n", mysqli_connect_error());
    exit();
}

$query  = "SELECT CURRENT_USER();";
$query .= "SELECT Name FROM City ORDER BY ID LIMIT 20, 5";

/* execute multi query */
if (mysqli_multi_query($link, $query)) {
    do {
        /* store first result set */
        if ($result = mysqli_store_result($link)) {
            while ($row = mysqli_fetch_row($result)) {
                printf("%s\n", $row[0]);
            }
            mysqli_free_result($result);
        }
        /* print divider */
        if (mysqli_more_results($link)) {
            printf("-----------------\n");
        }
    } while (mysqli_next_result($link));
}

/* close connection */
mysqli_close($link);

Результат выполнения данного примера:

my_user@localhost ----------------- Amersfoort Maastricht Dordrecht Leiden Haarlemmermeer

Смотрите также: mysqli_use_result(), mysqli_store_result(), mysqli_next_result() и mysqli_more_results().

Все функции mysql
Описание на ru2.php.net
Описание на php.ru