"is required", 'equals' => "must be the same as '%s'", 'different' => "must be different than '%s'", 'accepted' => "must be accepted", 'numeric' => "must be numeric", 'integer' => "must be an integer (0-9)", 'length' => "must be longer than %d", 'min' => "must be greater than %s", 'max' => "must be less than %s", 'in' => "contains invalid value", 'notIn' => "contains invalid value", 'ip' => "is not a valid IP address", 'email' => "is not a valid email address", 'url' => "not a URL", 'urlActive' => "must be an active domain", 'alpha' => "must contain only letters a-z", 'alphaNum' => "must contain only letters a-z and/or numbers 0-9", 'slug' => "must contain only letters a-z, numbers 0-9, dashes and underscores", 'regex' => "contains invalid chatacters", 'date' => "is not a valid date", 'dateFormat' => "must be date with format '%s'", 'dateBefore' => "must be date before '%s'", 'dateAfter' => "must be date after '%s'", 'contains' => "must contain %s" );