MongoClient::close
(PECL mongo >=1.3.0)
MongoClient::close — Closes this connection
Описание
$connection
] )The MongoClient::close() method forcefully closes a connection to the database, even if persistent connections are being used. You should never have to do this under normal circumstances.
Список параметров
-
connection -
If connection is not given, or
FALSEthen connection that would be selected for writes would be closed. In a single-node configuration, that is then the whole connection, but if you are connected to a replica set, close() will only close the connection to the primary server.If connection is
TRUEthen all connections as known by the connection manager will be closed. This can include connections that are not referenced in the connection string used to create the object that you are calling close on.If connection is a string argument, then it will only close the connection identified by this hash. Hashes are identifiers for a connection and can be obtained by calling MongoClient::getConnections().
Возвращаемые значения
Returns if the connection was successfully closed.
Примеры
Пример #1 MongoClient::close() example
This example demonstrates how to selectively close all connections for secondaries only.
<?php
// Connect to a replicaset
$a = new MongoClient("mongodb://whisky:13000/?replicaset=seta");
$connections = $a->getConnections();
foreach ( $connections as $con )
{
// Loop over all the connections, and when the type is "SECONDARY"
// we close the connection
if ( $con['connection']['connection_type_desc'] == "SECONDARY" )
{
echo "Closing '{$con['hash']}': ";
$closed = $a->close( $con['hash'] );
echo $closed ? "ok" : "failed", "\n";
}
}
?>
Результат выполнения данного примера:
Closing 'whisky:13001;X;4948': ok
Список изменений
| Версия | Описание |
|---|---|
| 1.3.0 |
The |
| 1.2.0 |
Before version 1.2.0 the driver would not use persistent connections by default, and all connections would be closed as soon as a MongoDB connection went out if scope. Since version 1.2.0 this is no longer the case and it is a bad idea to call close as you might end up overloading the server with connections under high load. |
Смотрите также
- MongoClient::getConnections() - Return info about all open connections
- PHP Руководство
- Функции по категориям
- Индекс функций
- Справочник функций
- Расширения для работы с базами данных
- Расширения для работы с базами данных отдельных производителей
- MongoDB
- Базовые классы
- Функция MongoClient::close() - Closes this connection
- Функция MongoClient::connect() - Connects to a database server
- Функция MongoClient::__construct() - Creates a new database connection object
- Функция MongoClient::dropDB() - Drops a database [deprecated]
- Функция MongoClient::__get() - Gets a database
- Функция MongoClient::getConnections() - Return info about all open connections
- Функция MongoClient::getHosts() - Updates status for all associated hosts
- Функция MongoClient::getReadPreference() - Get the read preference for this connection
- Функция MongoClient::getWriteConcern() - Get the write concern for this connection
- Функция MongoClient::killCursor() - Kills a specific cursor on the server
- Функция MongoClient::listDBs() - Lists all of the databases available.
- Функция MongoClient::selectCollection() - Gets a database collection
- Функция MongoClient::selectDB() - Gets a database
- Функция MongoClient::setReadPreference() - Set the read preference for this connection
- Функция MongoClient::setWriteConcern() - Set the write concern for this connection
- Функция MongoClient::__toString() - String representation of this connection
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