title: PHP, MySQL database.`table`, quotes present, I don't understand
body: <p>I'm working on an app that uses the mysql tables defined in an array. This is so they can be changed quickly for use in the dev/live environments.</p>
  
  <p>Other than issues regarding why the dev environment uses completely different table structure, I've got what I'm hoping is a simple question.</p>
  
  <p>I've got one table defined differently than the others, like so:</p>
  
  <pre>
  'customer' => Array(
    'variables' => 'customer.`variables`'
  )
  </pre>
  
  <p>While all the other tables are defined this way:</p>
  
  <pre>
  'customer' => Array(
    'orders' => 'customer.orders'
  )
  </pre>
  
  <p>The difference being the pair of ` surrounding the table name. Obviously this isn't a valid table (and I can't find a table named simply 'variables' in the database. Quick ideas how I can track this one down? I'm assuming at this point that it has a special meaning to the MySQL server, however that's just a guess.</p>
  
  <p>Note: There are many other tables defined in the same array, I've simply excluded them. Every other definition is like the second example.</p>