title: Fatal error: Class 'MongoDB\Driver\Manager' not found
body: <p>I want to use the MongoDB Driver, but it throw me an error, when i use it:</p>
  
  <pre><code>$mongo = new MongoDB\Driver\Manager("mongodb://localhost:27017");
  </code></pre>
  
  <p>The error:</p>
  
  <blockquote>
    <p>Message: Class 'MongoDB\Driver\Manager' not found</p>
  </blockquote>
  
  <p>When i check it with the php_info(), i see, there is <a href="https://i.stack.imgur.com/GUFHv.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/GUFHv.jpg" alt="enter image description here"></a></p>
  
  <p>Is there any requirement to use the driver?</p>