original_string: protected static function cache_get($contextlevel, $instance) {
          if (isset(self::$cache_contexts[$contextlevel][$instance])) {
              return self::$cache_contexts[$contextlevel][$instance];
          }
          return false;
      }
code: protected static function cache_get($contextlevel, $instance) {
          if (isset(self::$cache_contexts[$contextlevel][$instance])) {
              return self::$cache_contexts[$contextlevel][$instance];
          }
          return false;
      }
code_tokens: protected static function cache_get ( $ contextlevel , $ instance ) { if ( isset ( self :: $ cache_contexts [ $ contextlevel ] [ $ instance ] ) ) { return self :: $ cache_contexts [ $ contextlevel ] [ $ instance ] ; } return false ; }
docstring: Gets a context from the cache.
  
  @static
  @param int $contextlevel Context level
  @param int $instance Instance ID
  @return context|bool Context or false if not in cache
docstring_tokens: Gets a context from the cache .