title: How do you download PHPSECLIB on CentOS7?
body: <p>I have this php file:</p>
  
  <pre><code>&lt;?php
  error_reporting(E_ALL);
  ini_set('display_errors', 'On');
  include_once("constants.php");
  include('Net/SFTP.php');
  
  $sftp = new Net_SFTP(Constant::QUICKCHECK_SERVER);
  if (!$sftp-&gt;login(Constant::QUICKCHECK_USERNAME, Constant::QUICKCHECK_PASSWORD)) {
      exit('Login Failed');
  }
  </code></pre>
  
  <p>And when I run it I get this error :</p>
  
  <pre><code>Warning: include(Net/SFTP.php): failed to open stream
  </code></pre>
  
  <p>The problem is that I don't know how to properly install phpseclib. </p>