File Permission
<blockquote>
  <p>How i can set <strong>owner and group</strong> to
  file in php , i write</p>
  
  <p>chgrp("dompdf/background_image.html",1122);</p>
  
  <p>but this is not working</p>
  
  <p>it Set <strong>99</strong> instead of <strong>1122</strong></p>
</blockquote>
