title: php: download variable content as file
body: <p>Is the subject possible? I have a script executing. At one point I have a large piece of text in a variable. Could I make it available as a downloadable file without actually writing variable content to disk?</p>
  
  <pre><code>&lt;?php
      echo "Hello";
      //how do I make the content of this variable downloadable?
      $download_me = "download me...";
      echo "Bye";
  ?&gt;
  </code></pre>