title: PHP round decimals
body: <p>Is it possible to round a decimals to the nearest .5 with PHP like this:</p>
  
  <pre><code>number | round
  ----------------
   1.29  |  1.50
   2.03  |  2.00
   1.43  |  1.50
   1.13  |  1.00
  11.38  | 11.50
  </code></pre>
  
  <p>I tried with:</p>
  
  <pre><code>$rnd= round($number,2);
  </code></pre>
  
  <p>but I get decimals like the one in the column "number" above.</p>