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    Pdo\Pgsql::setNoticeCallback

    (PHP 8 >= 8.4.0)

    Pdo\Pgsql::setNoticeCallback — Set a callback to handle notice and warning messages generated by the backend

    説明

    public Pdo\Pgsql::setNoticeCallback(?callable $callback): void

    Set a callback to handle notice and warning messages generated by the backend. This includes messages emitted by PostgreSQL itself, as well as those raised by user-defined SQL functions using RAISE. Please note that the actual receipt of these messages depends on the backend setting client_min_messages.

    パラメータ

    callback
    If null is passed, the handler is reset to its default state.

    Otherwise, the handler is a callback with the following signature:

    handler(string $message): void
    message
    A message generated by the backend.

    戻り値

    値を返しません。

    例

    例1 Pdo\Pgsql::setNoticeCallback() example

    <?php
    $pdo     = new Pdo\Pgsql('pgsql:dbname=test host=localhost', $user, $pass);

    $pdo->exec('CREATE TABLE parent(id int primary key)');
    $pdo->exec('CREATE TABLE child(id int references parent)');

    $pdo->setNoticeCallback(function ($message) {
    echo     $message;
    });

    $pdo->exec('TRUNCATE parent CASCADE');
    ?>

    上の例の出力は、 たとえば以下のようになります。

    NOTICE:  truncate cascades to table "child"

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