MongoDB PHP connection not working - php

Question

<?php
$m = new MongoClient('mongodb://localhost', array(
'username' => 'wa',
'password' => 'password',
'db' => 'wa'
));
I'm using that code snippet to connect and am trying to run commands in PHP to insert / find data in a MongoDB collection or database.
I installed MongoDB and added the mongo.so extension to my php.ini.
What am I doing wrong?

Answer 1

Can you run just the connection code from the command line. Also you should be passing in your connection options in this format:
mongodb://[username:password#]host1[:port1][,host2[:port2:],...]/db
Use this:
<?php
$m = new MongoClient('mongodb://wa:password#localhost/wa');
?>
That will throw any errors you are having on the command line and be easy to diagnose. The responses should be self explainatory. Likely causes:
You are connecting to localhost and do not have a running mongod or mongos on this machine. [ So change tha host and possibly port].
Your user credentials are incorrect
It seems likely that case 1 applies by the very fact you are supplying user credentials, as you would be unlikely to need them if developing on your own machine. It would also be very uncommon to be running MongoDB on the same server as your application in production.

Answer 2

For anyone that stumbles upon this, the MongoClient is depricated and does not work with the current (as of Aug 2018) MongoDB PHP Driver. (which would be installed with the mongodb.dll file, not the *.so file)
A current example of a working connection would be:
<?php
$user = "XXXX";
$pwd = 'XXXX';
$filter = [];
if (isset($_POST['needleID'])) {
$needleID = $_POST['needleID'];
$filter = ['id'=> $needleID];
}
//Manager Class
$connection = new MongoDB\Driver\Manager("mongodb://${user}:${pwd}#localhost:27017");
// Query Class
$query = new MongoDB\Driver\Query($filter);
// Output of the executeQuery will be object of MongoDB\Driver\Cursor class
$rows = $connection->executeQuery('sedwe.defaultConfig', $query);
// Convert rows to Array and sedn result back to client
$rowsArr = $rows->toArray();
echo json_encode($rowsArr);
?>