Fayl og'irligi bit'larda

<?
function showfilesize( $url ){static $regex ='/^Content-Length:*+Kd++$/im' ;
if(! $fp =@fopen ($url ,'rb' )){return false;}
if(isset( $http_response_header )&& preg_match ($regex ,implode ("n" , $http_response_header), $matches )){
return(int) $matches [ 0];
}
return strlen (stream_get_contents( $fp ));
}
?>