title: Return Data and Type of mysql_fetch_array()
body: <p>Consider the following 3 standard statements</p>
  
  <pre><code>$queryString = "SOME SQL SELECT QUERY";
  $queryResult = mysql_query($queryString);
  $queryArray = mysql_fetch_array($queryResult);
  </code></pre>
  
  <p>Question is :</p>
  
  <p>If the result set of the query is empty, what will be the resultant datatype and value of <code>$queryArray</code> after all three statements are executed ?</p>