The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.
YAF_VERSION
(string) YAF_ENVIRON
(string) YAF_ERR_STARTUP_FAILED
(int) YAF_ERR_ROUTE_FAILED
(int) YAF_ERR_DISPATCH_FAILED
(int) YAF_ERR_AUTOLOAD_FAILED
(int) YAF_ERR_NOTFOUND_MODULE
(int) YAF_ERR_NOTFOUND_CONTROLLER
(int) YAF_ERR_NOTFOUND_ACTION
(int) YAF_ERR_NOTFOUND_VIEW
(int) YAF_ERR_CALL_FAILED
(int) YAF_ERR_TYPE_ERROR
(int)