The MongoDB\Driver\Manager class

(mongodb >=0.2.0)

The MongoDB\Driver\Manager is the main entry point to the extension. It is responsible for maintaining connections to MongoDB (be it standalone server, replica set, or sharded cluster).

No connection to MongoDB is made upon instantiating the Manager. This means the MongoDB\Driver\Manager can always be constructed, even though one or more MongoDB servers are down.

Any write or query can throw connection exceptions as connections are created lazily. A MongoDB server may also become unavailable during the life time of the script. It is therefore important that all actions on the Manager to be wrapped in try/catch statements.

Обзор классов

final MongoDB\Driver\Manager {
/* Методы */
final public __construct ( string $uri [, array $options [, array $driverOptions ]] )
final public MongoDB\Driver\WriteResult executeBulkWrite ( string $namespace , MongoDB\Driver\BulkWrite $bulk [, MongoDB\Driver\WriteConcern $writeConcern ] )
final public MongoDB\Driver\Result executeCommand ( string $db , MongoDB\Driver\Command $command [, MongoDB\Driver\ReadPreference $readPreference ] )
final public MongoDB\Driver\WriteResult executeDelete ( string $namespace , array|object $filter [, array $deleteOptions [, MongoDB\Driver\WriteConcern $writeConcern ]] )
final public MongoDB\Driver\WriteResult executeInsert ( string $namespace , array|object $document [, MongoDB\Driver\WriteConcern $writeConcern ] )
final public MongoDB\Driver\Result executeQuery ( string $namespace , MongoDB\Driver\Query $query [, MongoDB\Driver\ReadPreference $readPreference ] )
final public MongoDB\Driver\WriteResult executeUpdate ( string $namespace , array|object $filter , array|object $newObj [, array $updateOptions [, MongoDB\Driver\WriteConcern $writeConcern ]] )
final public ReturnType getServers ( void )


Пример #1 MongoDB\Driver\Manager::__construct() basic example

var_dump()ing a MongoDB\Driver\Manager will print out various details about the manager that are otherwise not normally expopsed. This can be useful to debug how the driver views your MongoDB setup, and which options are used.


= new MongoDB\Driver\Manager("mongodb://localhost:27017");


Результатом выполнения данного примера будет что-то подобное:

 object(MongoDB\Driver\Manager)#1 (3) {   ["request_id"]=>   int(1714636915)   ["uri"]=>   string(25) "mongodb://localhost:27017"   ["cluster"]=>   array(13) {     ["mode"]=>     string(6) "direct"     ["state"]=>     string(4) "born"     ["request_id"]=>     int(0)     ["sockettimeoutms"]=>     int(300000)     ["last_reconnect"]=>     int(0)     ["uri"]=>     string(25) "mongodb://localhost:27017"     ["requires_auth"]=>     int(0)     ["nodes"]=>     array(...)     ["max_bson_size"]=>     int(16777216)     ["max_msg_size"]=>     int(50331648)     ["sec_latency_ms"]=>     int(15)     ["peers"]=>     array(0) {     }     ["replSet"]=>     NULL   } }