My on the fly less compiler

lessc.php

<?php

header('Content-Type: text/css');
require_once('lessc.inc.php');


$files = explode(',', $_GET['f']);

foreach($files as $f) _compile($f);


function _compile($f) {

  $lessc = new lessc('../'.$f);
  $less = $lessc->parse();

  $less = str_replace(array("\n", "\r"), ' ', $less);
  $less = preg_replace('#\s{2,}#i', '', $less);
  $less = preg_replace('#\s?\{\s?#i', '{', $less);
  $less = preg_replace('#\s?\}\s?#i', '} ', $less);
  $less = preg_replace('#\s?\;\s?#i', ';', $less);
  $less = preg_replace('#\s?\:\s?#i', ':', $less);
  $less = preg_replace('#\s?\,\s?#i', ',', $less);


  print $less . "\n\r";
}

?>