title: In PHP, How to Convert an Argument Name into a String
body: <p>My goal is to echo the argument passed to a function. For example, how can this be done?</p>
  
  <pre><code>$contact_name = 'foo';
  
  function do_something($some_argument){
  // echo 'contact_name'  .... How???
  }
  
  do_something($contact_name);
  </code></pre>