title: Parse substring from a string that starts with specific word
body: <p>I have a mutli-line string <code>$comment</code>, which looks like:</p>
  
  <pre><code>@Description: some description.
  @Feature/UseCase: some features.
  @InputParameter: some input param.
  @ChangedParameter: some changed param.
  @NewOutputParameter: some output param.
  @Comments/Note: some notes.
  </code></pre>
  
  <p>I want to convert it into six different strings so that after the conversion it should look like: <code>$description = 'some description'</code>, <code>$features = 'some features'</code> and so on. How can I achieve that?</p>
  
  <p>I have tried <a href="http://php.net/manual/en/function.explode.php" rel="nofollow noreferrer"><code>explode</code></a>, but it's not working for me. I'm a beginner in PHP and would appreciate any help.</p>