MongoClient Class vs. MongoDB\Driver\Manager Class

Question

I want to get your recommend about my web project. I use PHP and MongoDB but I was confused when I read this sentence from php documentation.

This extension that defines this class is deprecated. Instead, the MongoDB extension should be used. Alternatives to this class include: MongoDB\Driver\Manager

I already used MongoClient Class for CRUD but after reading that sentence, I tried to migrate MongoClient to MongoDB\Driver\Manager. The connection using MongoDB\Driver\Manager was successed but I couldn't anymore :(

My PHP version is 5.6.29. Mongo extension version is 1.7.0 MongoDB extension version is 1.2.9

My questions are: Do I have to use MongoDB\Driver\Manager Class? Is it better than MongoClient Class?

Meteor Newbie · Accepted Answer · 2017-08-17T13:53:14.467

5

Here is a good answer about deprecated language features: What does PHP do with deprecated functions?

And here is a proper usage for php with mongodb:

$manager = new MongoDB\Driver\Manager("mongodb://localhost:27017");
$filter = [];
$options = [
    'sort' => ['_id' => 1],
];

$query = new MongoDB\Driver\Query($filter, $options);
$cursor = $manager->executeQuery('db.collection', $query);

foreach ($cursor as $document) {
//...
}

There are are a lot of tutorials for CRUD operation with php and mongodb, for example: MongoDB PHP tutorial

In short: you should not use deprecated feature because of security reasons and because it could get removed from php in the future. So better update your code.

edited Aug 17 '17 at 13:53

answered Aug 17 '17 at 13:44

Meteor Newbie

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Thanks! Can I ask more? What is MongoDB\Driver\Command Class? I can't understand when it is used. – Jihyang Lee Aug 18 '17 at 06:35
"The MongoDB\Driver\Command class is a value object that **represents a database command**." For Example: `$command = new MongoDB\Driver\Command(['ping' => 1]);` or `$command = new MongoDB\Driver\Command(["count" => "collection", "query" => $query]);` – Meteor Newbie Aug 18 '17 at 08:21
With following command you can count documents that contain this string "world": `$query = ["hello" => "world"]; $command = new MongoDB\Driver\Command(["count" => "collection", "query" => $query]);` – Meteor Newbie Aug 18 '17 at 08:30

Roman · Answer 2 · 2019-02-04T01:25:57.207

I personally came across with the absence of a link to 'vendor/autoload.php'. It started working after my code looked like the following:

  $DB_CONNECTION_STRING="mongodb://YourCredentials";
  require '../vendor/autoload.php';
  $manager = new MongoDB\Driver\Manager( $DB_CONNECTION_STRING );

Then if you use MongoDB\Driver\Manager, a modern version of MongoDB driver, you implement CRUD operations such as the following:

Create a document in the collection:

$bulkWrite = new MongoDB\Driver\BulkWrite;
$doc = ['name' => 'John', age => 33, profession => 'Guess what?'];
$bulkWrite->insert($doc);
$manager->executeBulkWrite('db.MyCollection', $bulkWrite);

Read document in the collection by name with a limit:

$filter = ['name' => 'John'];
$options = ['limit' => 2];
$query = new MongoDB\Driver\Query($filter, $options);
$manager->executeQuery('db.MyCollection', $query);

Read document in the collection by MongoDb _id with a limit:

$filter = ['_id' => new MongoDB\BSON\ObjectID( '5bdf54e6d722dc000f0aa6c2' )];
$options = ['limit' => 2];
$query = new MongoDB\Driver\Query($filter, $options);
$manager->executeQuery('db.MyCollection', $query);

Update document in the collection: (Read more about options upsert and multi here)

$bulkWrite = new MongoDB\Driver\BulkWrite;
$filter = ['name' => 'John'];
$update = ['$set' => ['name' => 'Smith', age: 35, profession => 'Guess what?']];
$options = ['multi' => false, 'upsert' => false];
$bulkWrite->update($filter, $update, $options);
$manager->executeBulkWrite('db.MyCollection', $bulkWrite);

Delete document in the collection - Delete:

$bulkWrite = new MongoDB\Driver\BulkWrite;
$filter = ['name' => 'John', age => 35];
$options = ['limit' => 1];
$bulkWrite->delete($filter, $options);
$manager->executeBulkWrite('db.MyCollection', $bulkWrite);

MongoClient Class vs. MongoDB\Driver\Manager Class

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