title: How do I convert any string, number, or object into an array?
body: <p>Say, for instance, I load something with <code>simplexml_load_file()</code> but I want the output
  to be an array instead of an object.</p>
  
  <p>Or, say I have a dynamic value that will sometimes be a string, other times an array, 
  and other times an object (ie I don't know what the input will be, but I want the output
  to always be an array, no matter what).</p>
  
  <p>What's the best way to ensure any value I have is given back to me as an array?</p>