title: why regex cannot find string?
body: <p>The string is: <strong>Byredo Perfume Oil Roll-On Blanche 7.5ML</strong> 
  I want to get <em>7.5</em> from the string.</p>
  
  <pre><code>$productinfo['title'] = 'Estee Lauder Sensuous Noir EDP 50ML';
  if (preg_match('/.*\s(\d+)\s?ml/', strtolower($productinfo['title'])))
  {
  preg_match('/.*\s(\d+)\s?ml/', strtolower($productinfo['title']), $C);
  $mlsize = $C[1];
  echo $mlsize;
      }
  </code></pre>
  
  <p>This code works great. And I get <strong>50</strong> from this code. But when the <strong>$productinfo['title']</strong> equals to this: <em>Byredo Perfume Oil Roll-On Blanche 7.5ML</em> the code is not working. I want to get <em>7.5</em> from the string</p>