Сжатие исходного кода в DLE

<?php

function sanitize_output($buffer) {
	$search = array('/\>[^\S ]+/s', '/[^\S ]+\</s', '/(\s)+/s', '/<!--(.*?)-->/',);
	$replace = array('>', '<', '\\1', '');
	$buffer = preg_replace($search, $replace, $buffer);
	return $buffer;
}

echo $tpl->result['main'];

ob_start("sanitize_output");
echo $tpl->result['main'];
ob_end_flush();