(mongodb >=0.2.0)
MongoDB\Driver\Manager::executeCommand — Execute a MongoDB database command
$db
, MongoDB\Driver\Command $command
[, MongoDB\Driver\ReadPreference $readPreference
] )
Executes command on a MongoDB server matching readPreference.
dbThe name of the database on which to execute the command.
commandThe command document.
readPreferenceOpcionalmente, un MongoDB\Driver\ReadPreference a donde redireccionar el comando. Si no se proporciona, se empleará el valor de la Preferencia de lectura establcecida por el URI de conexión de MongoDB.
Returns MongoDB\Driver\Cursor on success, lanza una excepción (instanceof MongoDB\Driver\Exception) en caso de fallo.
Ejemplo #1 MongoDB\Driver\Manager::executeCommand() example
<?php
$manager = new MongoDB\Driver\Manager("mongodb://localhost:27017");
$command = new MongoDB\Driver\Command(array("ping" => 1));
try {
$cursor = $manager->executeCommand("admin", $command);
$response = $cursor->toArray()[0];
} catch(MongoDB\Driver\Exception $e) {
echo $e->getMessage(), "\n";
exit;
}
var_dump($response);
?>
El resultado del ejemplo sería algo similar a:
array(1) {
["ok"]=>
float(1)
}
Nota:
For write commands, MongoDB\Driver\WriteConcern is included in the
commanddocument itself.
Nota:
If a secondary
readPreferenceis used, it is the caller's responsibility to ensure that thecommandcan be executed on a secondary. No validation is done by the driver.