title: $wpdb wordpress returning empty array
body: <p>I have a problem which I have been trying to resolve since yesterday.  I am trying to pass an SQL Query via <code>$wpdb</code> on wordpress but I keep getting an empty array when I try to echo the result.</p>
  
  <p>I have tried <code>print_r</code> and <code>var_dump</code> and both are giving me empty values.  I would appreciate if someone can help as I cannot seem to get this thing sorted.  </p>
  
  <p>I have also tried calling the table via the db prefix with still no success.</p>
  
  <p>Below is the code I have been using</p>
  
  <pre><code>&lt;?php
  global $wpdb;
  $results = $wpdb-&gt;get_results("SELECT CURRENT FROM upper_winds WHERE LVL=&amp;level AND REGION=&amp;region  AND VALID=&amp;valid");
  echo $results;
   ?&gt;
  </code></pre>
  
  <p>P.S I have also tried <code>get_var</code> with the same problems.</p>
  
  <p>Thanks</p>