minify.css.mincss.php

<?php
class css
{
    /* Add your CSS files to this array (THESE ARE ONLY EXAMPLES) */
    protected $cssFiles = array();
    
    final public function add($path)
    {
        $this->cssFiles[] = $path;
    }
    final public function minify()
    {
        $buffer = "";
        foreach ($this->cssFiles as $cssFile) {
          $buffer .= file_get_contents($cssFile);
        }
        
        // Remove comments
        $buffer = preg_replace('!/\*[^*]*\*+([^/][^*]*\*+)*/!', '', $buffer);
        
        // Remove space after colons
        $buffer = str_replace(': ', ':', $buffer);
        
        // Remove whitespace
        $buffer = str_replace(array("\r\n", "\r", "\n", "\t"), '', $buffer);
        
        // Collapse adjacent spaces into a single space
        $buffer = ereg_replace(" {2,}", ' ',$buffer);
        
        // Remove spaces that might still be left where we know they aren't needed
        $buffer = str_replace(array('} '), '}', $buffer);
        $buffer = str_replace(array('{ '), '{', $buffer);
        $buffer = str_replace(array('; '), ';', $buffer);
        $buffer = str_replace(array(', '), ',', $buffer);
        $buffer = str_replace(array(' }'), '}', $buffer);
        $buffer = str_replace(array(' {'), '{', $buffer);
        $buffer = str_replace(array(' ;'), ';', $buffer);
        $buffer = str_replace(array(' ,'), ',', $buffer);
        
        // Enable GZip encoding.
        ob_start("ob_gzhandler");
        
        // Enable caching
        header('Cache-Control: public');
        
        // Expire in one day
        header('Expires: ' . gmdate('D, d M Y H:i:s', time() + 86400) . ' GMT');
        
        // Set the correct MIME type, because Apache won't set it for us
        header("Content-type: text/css");
        
        // Write everything out
        return $buffer;
    }
    
    final public function call()
    {
        return '<link rel="stylesheet" type="text/css" media="screen, print, projection" href="/css/compressed.css.php" />';
    }
}
?>