title: Fatal error: Uncaught Error: Call to undefined function ssh2_connect() in Ubuntu 18.4
body: <p>Hey there here i am trying to run a php code to connect with SSH and i am using phpseclib but i am facing a very frustrating situation here.</p>
  
  <pre><code>$connection_string = ssh2_connect('xyz', 22);
  </code></pre>