title: stop double full stops in a number field
body: <p>I have a user with a stammer. She often enters numbers as 2..00</p>
  
  <pre><code>'ILQtyNew' =&gt; array('filter' =&gt; FILTER_SANITIZE_NUMBER_FLOAT,
      'flags' =&gt; FILTER_FLAG_ALLOW_FRACTION)
  </code></pre>
  
  <p>does not strip the extra full stop out.
  Is there something I can do rather than a str_replace as it would be rather tedious</p>