CSS Crush is an extensible PHP based CSS preprocessor that aims to alleviate many of the hacks and workarounds necessary in modern CSS development.
http://the-echoplex.net/csscrush
<?php
require_once 'CssCrush/CssCrush.php';
$global_css = CssCrush::file( '/css/global.css' );
?>
<link rel="stylesheet" type="text/css" href="<?php echo $global_css; ?>" />
If you think you've found a bug, please visit the Issue tracker — https://github.com/peteboere/css-crush/issues — and create an issue explaining the problem and expected result.
To contribute code and bug fixes fork this project on Github, make changes to the code in your fork, and then send a "pull request" to be reviewed for inclusion.