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)