Антикэш стилей для Modx

includeStylesheet.php

<?php
/*
  Usage:
  [[includeStylesheet? &file=`/path/to/style.css` ]]
*/
if (!isset($file)) {
    return '';
}

$filePath = MODX_BASE_PATH.$file;

if (!is_file($filePath) or !is_readable($filePath)) {
    return '<!-- FILE NOT FOUND: '.$file.' --><script>console.error("FILE NOT FOUND: '.$file.'")</script>';
}

$time = filemtime($filePath);

return '<link rel="stylesheet" href="'.$file.'?v='.$time.'">';