способ сжатия объемных css и js файлов

header('Content-type: text/css');
ob_start("compress");
function compress($buffer) {
$buffer = preg_replace('!/\*[^*]*\*+([^/][^*]*\*+)*/!', '', $buffer);
$buffer = str_replace(array("\r\n", "\r", "\n", "\t", '  ', '    ', '    '), '', $buffer);
return $buffer;
}
include('css/style.css');
include('css/social.css');
include('style.css');
ob_end_flush();