title: How to get a variable name as a string in PHP?
body: <p>Say i have this PHP code:</p>
  
  <pre><code>$FooBar = "a string";
  </code></pre>
  
  <p>i then need a function like this:</p>
  
  <pre><code>print_var_name($FooBar);
  </code></pre>
  
  <p>which prints:</p>
  
  <pre><code>FooBar
  </code></pre>
  
  <p>Any Ideas how to achieve this? Is this even possible in PHP?</p>