PHP マニュアル
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# pg_get_notify

(no version information, might be only in CVS)

pg_get_notify -- Ping database connection

## Description

array pg_get_notify ( resource connection [, int result_type])

pg_get_notify() gets notify message sent by `NOTIFY` SQL command. To recieve nofigy messages, `LISTEN` SQL command must be issued. If there is notify message on the connection, array contains message name and backend PID is returned. If there is no message, `FALSE` is returned.

See also pg_get_pid()

例 1PostgreSQL NOTIFY message
    <?php
    $conn = pg_pconnect ("dbname=publisher");
    if (!$conn) {
        echo "An error occured.\n";
        exit;
    }

    // Listen 'author_updated' message from other processes
    pq_query($conn, 'LISTEN author_updated;');
    $notify = pg_get_notify($conn);
    if (!$notify)
        print("No messages\n");
    else
        print_r($notify);
    ?>

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