RainLab\Pages\Classes\Snippet::extractSnippetsFromMarkupCached PHP Method

    protected static function extractSnippetsFromMarkupCached($theme, $pageName, $markup)
    {
        if (array_key_exists($pageName, self::$pageSnippetMap)) {
            return self::$pageSnippetMap[$pageName];
        }
        $key = self::getMapCacheKey($theme);
        $map = null;
        $cached = Cache::get($key, false);
        if ($cached !== false && ($cached = @unserialize($cached)) !== false) {
            if (array_key_exists($pageName, $cached)) {
                $map = $cached[$pageName];
            }
        }
        if (!is_array($map)) {
            $map = self::extractSnippetsFromMarkup($markup, $theme);
            if (!is_array($cached)) {
                $cached = [];
            }
            $cached[$pageName] = $map;
            Cache::put($key, serialize($cached), Config::get('cms.parsedPageCacheTTL', 10));
        }
        self::$pageSnippetMap[$pageName] = $map;
        return $map;
    }