CacheSnippetTwig

gistfile1.php

<?php
public function getFunctions()
    {
        return array(
            new Twig_SimpleFunction('snippetC', function ($snippetName, $params = array()) {
                            global $modx;
                            $cacheManager = $modx->getCacheManager();
                            if($snipetFromCache = $cacheManager->get($snippetName)){
                                return $snipetFromCache;
                            } else {
                                $modx->getParser();
                                $snippet = $modx->runSnippet($snippetName, $params);
                                $cacheManager->set($snippetName,$snippet);
                                return $snippet;
                            }                
                        }),
                        );
    }