public function replaceCSS($context)
{
// Find all of the link tags
preg_match_all('#<link\\s[^>]*href=\\"' . str_replace('/', '\\/', self::CSS_DIR) . '\\/([^\\"]*).css\\"[^>]*>#', $context['output'], $found);
foreach ($found[1] as $i => $file) {
// Construct the filenames for the css files
$original_filename = DOCROOT . self::CSS_DIR . "/{$file}.css";
$new_filename = DOCROOT . self::CSS_DIR . "/{$file}-processed.css";
// Find when the files where last edited
$original_time = filemtime($original_filename);
$new_time = file_exists($new_filename) ? filemtime($new_filename) : 0;
// If the unprocessed CSS has been edited since our processed one, reprocessed it
if ($original_time > $new_time) {
// Remove the old file
if ($new_time) {
unlink($new_filename);
}
// Process the CSSP file
$csspp = new CSSPP(basename($original_filename), dirname($original_filename) . '/');
// See if the user wants the CSS to be minified
if ($this->_Parent->Configuration->get('minify', 'csspp') != 'yes') {
$csspp->setOption('minify', FALSE);
}
// See if the user wants the comments stripped out of the CSS
if ($this->_Parent->Configuration->get('strip_comments', 'csspp') != 'yes') {
$csspp->setOption('comments', TRUE);
}
file_put_contents($new_filename, $csspp->process());
}
// Change all of the link tags
$new = str_replace("{$file}.css", "{$file}-processed.css?" . filemtime($new_filename), $found[0][$i]);
$context['output'] = str_replace($found[0][$i], $new, $context['output']);
}
}
<?php
require 'csspp.php';
$csspp = new CSSPP($_GET['file'], realpath(dirname(__FILE__) . '/../') . '/');
$csspp->setOption('minify', FALSE);
header('Content-Type: text/css');
echo $csspp;
