title: Mysql default value from wordpress form query
body: <p>I'm trying to work out a mysql query from a wordpress form submission.</p>
  
  <p><strong>Currently my query is:</strong></p>
  
  <pre><code>INSERT INTO blah (`blah`, `blah`, `blah`, `blah`, `blah`, `blah`, `blah`, `blah`, `blah`) VALUES ("{11}", "{2}", "{6}", "{5}", "{4}", "{16}", "{7}", "{15}", "{10}")
  </code></pre>
  
  <p>If one of the values from the form (<em>an image file location</em>) is left empty I'd like it to be replaced with a default value (<em>image file location</em>)</p>
  
  <p>Thanks for any help!</p>
  
  <p>Alex</p>