Find a document with ObjectID in mongoDB

Question

When I inserted some documents into a collection (without an ObjectID) mongoDB adds its own ObjectIDs.

I want to query a document by its unique ObjectID.

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Answer 1

For MongoDB\Driver\Manager, a modern version of a MongoDB, you might consider the following working code:

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

  $filter = ['_id' => new MongoDB\BSON\ObjectID( '5bdf54e6d722dc000f0aa6c2' )];
  $options = [];

  $query = new MongoDB\Driver\Query($filter, $options);     
  $docs = $manager->executeQuery('YourDbName.YourCollectionName', $query);
}
catch (MongoDB\Driver\Exception\Exception $e) { 
  $filename = basename(__FILE__); 
  echo "The $filename script has experienced an error.\n"; 
  echo "It failed with the following exception:\n"; 
  echo "Exception:", $e->getMessage(), "\n"; 
} 

For testing purposes:

foreach ($docs as $doc) {
  print_r($doc);
  //or you can: echo "$doc->item  $row->qty  $row->status
";
}