MongoDB\Driver\WriteResult::getModifiedCount

(mongodb >=1.0.0)

MongoDB\Driver\WriteResult::getModifiedCountReturns the number of existing documents updated

Descrizione

final public MongoDB\Driver\WriteResult::getModifiedCount ( void ) : integer|null

If the update operation results in no change to the document (e.g. setting the value of a field to its current value), the modified count may be less than the value returned by MongoDB\Driver\WriteResult::getMatchedCount().

Elenco dei parametri

Questa funzione non contiene parametri.

Valori restituiti

Returns the number of existing documents updated, or NULL if the write was not acknowledged.

The modified count is not available on versions of MongoDB before 2.6, which used the legacy wire protocol version (i.e. OP_UPDATE). If this is the case, the modified count will also be NULL.

Errori/Eccezioni

Esempi

Example #1 MongoDB\Driver\WriteResult::getModifiedCount() example

<?php

$manager 
= new MongoDB\Driver\Manager;

$bulk = new MongoDB\Driver\BulkWrite;
$bulk->insert(['x' => 1]);
$bulk->update(['x' => 1], ['$set' => ['y' => 3]]);
$bulk->update(['x' => 2], ['$set' => ['y' => 1]], ['upsert' => true]);
$bulk->update(['x' => 3], ['$set' => ['y' => 2]], ['upsert' => true]);
$bulk->delete(['x' => 1]);

$result $manager->executeBulkWrite('db.collection'$bulk);

var_dump($result->getModifiedCount());

?>

Il precedente esempio visualizzerĂ :

int(1)

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