The new PHP driver supports the BulkWrite interface to minimize network calls to MongoDB:

$manager = new MongoDBDriverManager('mongodb://localhost:27017');
$bulk = new MongoDBDriverBulkWrite(array("ordered" => true));
$bulk->insert(array( "isbn" => "401", "name" => "MongoDB and PHP" ));
$bulk->insert(array( "isbn" => "402", "name" => "MongoDB and PHP, 2nd Edition" ));
$bulk->update(array("isbn" => "402"), array('$set' => array("price" => 15)));
$bulk->insert(array( "isbn" => "403", "name" => "MongoDB and PHP, revisited" ));


$result = $manager->executeBulkWrite('mongo_book.books', $bulk);
print_r($result);

The result can be seen as follows:

MongoDBDriverWriteResult Object
(
   [nInserted] => 3
   [nMatched] => 1
   [nModified] => 1
   [nRemoved] => 0
   [nUpserted] => 0
   [upsertedIds] => Array
       (
       )

   [writeErrors] => Array
       (
       )

   [writeConcernError] =>
   [writeConcern] => MongoDBDriverWriteConcern Object
       (
       )

)

In the preceding example, we executed two inserts, one update, and a third insert in an ordered fashion. The WriteResult object contains a total of three inserted documents and one modified document.

The main difference compared to simple create/delete queries is that executeBulkWrite() is a method of the MongoDBDriverManager class, which we instantiate on the first line.