title: PHP format decimal part of number
body: <p>I have number <code>0.000432532</code> i want to break decimal part thousands like this </p>
  
  <pre><code>0.000 432 532 
  </code></pre>
  
  <p><code>number_format()</code> is only formats the whole part of the float, not decimal part.</p>
  
  <p>Is there single function that can do it?</p>