how to connect to mongodb database in php 7 - php

Question

I am using mongodb 3.2 and php 7
I have installed the driver and its working..
Here is my code
<?php
$client = new MongoDB\Driver\Manager();
$db = $client->selectDatabase('inventory');
?>
how to connect to database "inventory"
the error that comes is
Fatal error: Uncaught Error: Call to undefined method MongoDB\Driver\Manager::selectDatabase()

Answer 1

I don't think you want to call the Manager directly. The newer MongoDB extension that replaces the built-in PHP Mongo DB client; You need to have the following requirements for the code to work. The code example that follows assumes the following:
You load with the composer autoloader.
You have the new MongoDB Driver extension from here: http://php.net/manual/en/set.mongodb.php
That you use the composer MongoDB Client library from here: http://php.net/manual/en/mongodb.tutorial.library.php
PHP >=5.6
use MongoDB\Client as MongoDbClient;
// When auth is turned on, then pass in these as the second parameters to the client.
$options = [
'password' => '123456',
'username' => 'superUser',
];
try {
$mongoDbClient = new MongoDbClient('mongodb://localhost:27017');
} catch (Exception $error) {
echo $error->getMessage(); die(1);
}
// This will get or make (in case it does not exist) the inventory database
// and a collection beers in the Mongo DV server.
$collection = $mongoDbClient->inventory->beers;
$collection->insertOne( [ 'name' => 'Hinterland', 'brewery' => 'BrewDog' ] );
$result = $collection->find( [ 'name' => 'Hinterland', 'brewery' => 'BrewDog' ] );
foreach ($result as $entry) {
echo $entry['_id'], ': ', $entry['name'], "\n";
}