title: PHP to Excel, bold font
body: <p>For transferring some data from to excel via php I am using this function for the creation of labels;</p>
  
  <pre><code>function xls_label($row, $col, $value, $bold )  
  {       
       echo pack("ssssss", 0x204, 8 + strlen($value), $row, $col, 0x0, strlen($value)); 
       echo $value;  
  }
  </code></pre>
  
  <p>This adds a label in regular font.</p>
  
  <p>Now I was wondering what do I need to add to this function to make the font of the label bold?</p>
  
  <hr>
  
  <p><em>I do not want to use any library since I just need this one simple function.</em></p>