47      * @param string $namespace Namespace filter
52     private static function getMonthCacheKey($namespace, $year, $month) {  argument
53         $ns = preg_replace('/[^a-zA-Z0-9_-]/', '_', $namespace ?: 'default');
70      * @param string $namespace Namespace filter
76     public static function getMonthEvents($namespace, $year, $month, $ttl = self::DEFAULT_TTL) {  argument
77         $key = self::getMonthCacheKey($namespace, $year, $month);
117      * @param string $namespace Namespace filter
123     public static function setMonthEvents($namespace, $year, $month, array $events) {  argument
124         $key = self::getMonthCacheKey($namespace, $year, $month);
149      * @param string $namespace Namespace filter
153     public static function invalidateMonth($namespace, $year, $month) {  argument
154         $key = self::getMonthCacheKey($namespace, $year, $month);
169      * @param string $namespace Namespace to invalidate
171     public static function invalidateNamespace($namespace) {  argument
172         $ns = preg_replace('/[^a-zA-Z0-9_-]/', '_', $namespace ?: 'default');