(mongodb >=1.0.0)
MongoDB\Driver\Manager::executeQuery — Execute a database query
$namespace
, MongoDB\Driver\Query $query
[, array $options = array()
] ) : MongoDB\Driver\CursorSelects a server according to the "readPreference" option and executes the query on that server. By default, the read preference from the MongoDB Connection URI will be used.
namespace (string)Un espacio de nombres completamente cualificado (p. ej. "nombreBaseDatos.nombreColección").
query (MongoDB\Driver\Query)La consulta a ejecutar.
options
| Option | Type | Description |
|---|---|---|
| readPreference | MongoDB\Driver\ReadPreference |
Una preferencia de lectura a usar para seleccionar un servidor para la operación. |
| session | MongoDB\Driver\Session |
Una sesión a asociar con la operación. |
Devuelve un MongoDB\Driver\Cursor en caso de éxito.
| Versión | Descripción |
|---|---|
| 1.4.0 |
The third parameter is now an options array.
For backwards compatibility, this paramater will still accept a
MongoDB\Driver\ReadPreference object.
|
Ejemplo #1 MongoDB\Driver\Manager::executeQuery() example
<?php
$manager = new MongoDB\Driver\Manager("mongodb://localhost:27017");
$bulk = new MongoDB\Driver\BulkWrite;
$bulk->insert(['x' => 1]);
$bulk->insert(['x' => 2]);
$bulk->insert(['x' => 3]);
$manager->executeBulkWrite('db.collection', $bulk);
$filter = ['x' => ['$gt' => 1]];
$options = [
'projection' => ['_id' => 0],
'sort' => ['x' => -1],
];
$query = new MongoDB\Driver\Query($filter, $options);
$cursor = $manager->executeQuery('db.collection', $query);
foreach ($cursor as $document) {
var_dump($document);
}
?>
El resultado del ejemplo sería:
object(stdClass)#6 (1) {
["x"]=>
int(3)
}
object(stdClass)#7 (1) {
["x"]=>
int(2)
}
Ejemplo #2 Limiting execution time for a query
The "maxTimeMS" MongoDB\Driver\Query option may be used to limit the execution time of a query. Note that this time limit is enforced on the server side and does not take network latency into account. See » Terminate Running Operations in the MongoDB manual for more information.
<?php
$manager = new MongoDB\Driver\Manager('mongodb://localhost:27017');
$filter = ['x' => ['$gt' => 1]];
$options = [
'maxTimeMS' => 1000,
];
$query = new MongoDB\Driver\Query($filter, $options);
$cursor = $manager->executeQuery('db.collection', $query);
foreach ($cursor as $document) {
var_dump($document);
}
?>
If the query fails to complete after one second of execution time on the server, a MongoDB\Driver\Exception\ExecutionTimeoutException will be thrown.