title: PHP Colour Not Being Acknowledged
body: <p>I am doing some testing with FPDF and running into an issue. When setting a container to pull it's colour from a pre-defined variable it is not honoring the value and I can't see why not. Example below</p>
  
  <p>This works perfectly:</p>
  
  <pre><code>$pdf-&gt;SetFillColor(131,54,112);
  </code></pre>
  
  <p>However when trying to pull the value from a variable, it does not honor the value</p>
  
  <pre><code>$colour = '131,54,112';
  $pdf-&gt;SetFillColor($colour);
  </code></pre>
  
  <p>Anyone with any ideas?</p>