';
   foreach($lines as $i => $line) {
     $lineNumber = str_pad($i + 1,  $pad_length, '0', STR_PAD_LEFT);
       if ($i % 2 == 0) {
         $numbgcolor = '#C8E1FA';
         $linebgcolor = '#F7F7F7';
         $fontcolor = '#3F85CA';
          } else {
         $numbgcolor = '#DFEFFF';
         $linebgcolor = '#FDFDFD';
         $fontcolor = '#5499DE';
       }

     if ($line == '') $line = ' ';
     $return .= '' . $i . '
' . $line . '';
   }
  $return .= '