mysqli::poll

    mysqli_poll

    (PHP 5 >= 5.3.0, PHP 7, PHP 8)

    mysqli::poll -- mysqli_poll — Poll connections

    Açıklama

    Nesne yönelimli kullanım

    publicstaticmysqli::poll(
        ?array&$read,
        ?array&$error,
        array&$reject,
        int$seconds,
        int$microseconds = 0
    ): int|false

    Yordamsal kullanım

    mysqli_poll(
        ?array&$read,
        ?array&$error,
        array&$reject,
        int$seconds,
        int$microseconds = 0
    ): int|false

    Poll connections. The method can be used as static.

    Bilginize:

    Sadece mysqlnd ile kullanılabilir.

    Bağımsız Değişkenler

    read

    List of connections to check for outstanding results that can be read.

    error

    List of connections on which an error occurred, for example, query failure or lost connection.

    reject

    List of connections rejected because no asynchronous query has been run on for which the function could poll results.

    seconds

    Maximum number of seconds to wait, must be non-negative.

    microseconds

    Maximum number of microseconds to wait, must be non-negative.

    Dönen Değerler

    Returns number of ready connections upon success, false otherwise.

    Hatalar/İstisnalar

    A ValueError is thrown when neither the read nor error arguments are passed.

    Sürüm Bilgisi

    Sürüm: Açıklama
    8.3.0 Now throws a ValueError exception when neither the read nor error arguments are passed.

    Örnekler

    Örnek 1 A mysqli_poll() example

    <?php
    $link1     = mysqli_connect();
    $link1->query("SELECT 'test'", MYSQLI_ASYNC);
    $all_links = array($link1);
    $processed = 0;
    do {
    $links = $errors = $reject = array();
    foreach (    $all_links as $link) {
    $links[] = $errors[] = $reject[] = $link;
    }
    if (!    mysqli_poll($links, $errors, $reject, 1)) {
    continue;
    }
    foreach (    $links as $link) {
    if (    $result = $link->reap_async_query()) {
    print_r($result->fetch_row());
    if (    is_object($result))
    mysqli_free_result($result);
    } else die(    sprintf("MySQLi Error: %s", mysqli_error($link)));
    $processed++;
    }
    } while (    $processed < count($all_links));
    ?>

    Yukarıdaki örneğin çıktısı:

    Array ( [0] => test )

    Ayrıca Bakınız

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