//Logician Hack: 
$page_byte=strlen($output); 
//$output=preg_replace ('/\r\n(\s*)/', "\r\n", $output); 
$output=preg_replace ('/<!-- .*?  -->/',"",$output); 


$pagenew_byte=strlen($output); 
$page_kilobyte=number_format(($page_byte/1024),2); 
$pagenew_kilobyte=number_format(($pagenew_byte/1024),2); 
$pagesaved_byte=$page_byte-$pagenew_byte; 
$pagesaved_kilobyte=number_format((($pagesaved_byte)/1024),2); 
$pagesaved_perc=number_format(((100*$pagesaved_byte)/$page_byte),2);