update-one-document.php

<?php

      require_once __DIR__ . '/vendor/autoload.php';
      $dotenv = Dotenv\Dotenv::createImmutable(__DIR__);
      $dotenv->load();

      $client = new MongoDB\Client(
         'mongodb+srv://'.$_ENV['MDB_USER'].':'.$_ENV['MDB_PASS'].'@'.$_ENV['ATLAS_CLUSTER_SRV'].'/sample_restaurants'
      );
     
      $collection = $client->selectCollection('sample_analytics', 'customers');

      $updateResult = $collection->updateOne(
         [ 'restaurant_id' => '40356151' ],
         [ '$set' => [ 'name' => 'Brunos on Astoria' ]]
      );

      printf("Matched %d document(s)\n", $updateResult->getMatchedCount());
      printf("Modified %d document(s)\n", $updateResult->getModifiedCount());