PHP connection to MongoDB cluster

Hello, I’ve difficulties with connection to MongoDB cluster on DigitalOcean by PHP. As we know, we have to use SSL, but I don’t know how. My code is as follows:

require_once __DIR__ . "/vendor/autoload.php";
$db = new MongoDB\Client('mongodb://[myapp]', array(
    'username' => 'doadmin',
    'password' => '[password]',
    'db'       => '[database]',
	'authSource' => 'admin',
	'replicaSet' => '[replica]',
	'tls' => 'true',
	'tlsCAFile' => '/usr/share/ca-certificates/app/ca-certificate.pem'

$db = $conn->[database];
$collection = $db->[collection];

I am getting an error: ‘Uncaught MongoDB\Driver\Exception\ConnectionTimeoutException: No suitable servers found’.

Do you know how to connect properly in this case? Thank you in advance.

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Hi there @MichalGiza,

I have just tested this with the code snippet that you’ve provided and it all worked as expected.

As you are getting a connection timeout exception, this is most likely caused by one of the following:

  • Port 27017 is closed for outgoing connections on your server, if this is the case you need to make sure that it is open.

  • You have used the Trusted sources functionality and locked down your database cluster for a specific IP only. If this is the case you would need to allow your server IP as well so that it could connect to the database cluster.

You could test the connectivity after that with the mongo command-line tool to make sure that you actually can connect to the cluster:

mongo "mongodb+srv://" --tls --tlsCAFile <replace-with-path-to-CA-cert>

Let me know how it goes! Regards, Bobby