SAMConnection->isConnected()
(No version information available, might be only in CVS)
SAMConnection->isConnected() — Queries whether a connection is established to a Messaging Server
Описание
SAMConnection
bool isConnected
( void
)
Calling the "isConnected" method on a Connection object will check whether the PHP script is connected to a messaging server. No messages can be sent or received unless a connection has been established with a Messaging server.
Возвращаемые значения
This method returns TRUE if the SAMConnection object is successfully connected to a Messaging server or FALSE otherwise.
Примеры
Пример #1 Checking whether there us a connection to a Messaging Server
<?php
if ($conn->isConnected()) {
echo 'Connection is active.'
} else {
echo 'No active connection!'
}
?>
- PHP Руководство
- Функции по категориям
- Индекс функций
- Справочник функций
- Другие службы
- Simple Asynchronous Messaging
- Функция SAMConnection::commit() - Commits (completes) the current unit of work.
- Функция SAMConnection::connect() - Establishes a connection to a Messaging Server
- Функция SAMConnection::__construct() - Creates a new connection to a Messaging Server
- Функция SAMConnection::disconnect() - Disconnects from a Messaging Server
- Функция SAMConnection::errno() - Contains the unique numeric error code of the last executed SAM operation.
- Функция SAMConnection::error() - Contains the text description of the last failed SAM operation.
- Функция SAMConnection::isConnected() - Queries whether a connection is established to a Messaging Server
- Функция SAMConnection::peek() - Read a message from a queue without removing it from the queue.
- Функция SAMConnection::peekAll() - Read one or more messages from a queue without removing it from the queue.
- Функция SAMConnection::receive() - Receive a message from a queue or subscription.
- Функция SAMConnection::remove() - Remove a message from a queue.
- Функция SAMConnection::rollback() - Cancels (rolls back) an in-flight unit of work.
- Функция SAMConnection::send() - Send a message to a queue or publish an item to a topic.
- Функция SAMConnection::setDebug() - Turn on or off additional debugging output.
- Функция SAMConnection::subscribe() - Create a subscription to a specified topic.
- Функция SAMConnection::unsubscribe() - Cancel a subscription to a specified topic.
- Функция SAMMessage::body() - The body of the message.
- Функция SAMMessage::__construct() - Creates a new Message object
- Функция SAMMessage::header() - The header properties of the message.
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