Array ( [method] => https://rest.reserve-online.net/availability/demo/calendar [http_method] => GET [http_code] => 400 [error_code] => INVALID_PARAM [error_msg] => Can't cast String [] to a value of type [date] [params] => Array ( [param] => Array ( [0] => Array ( [type] => URL [name] => fromd [value] => Array ( ) ) [1] => Array ( [type] => URL [name] => tod [value] => 2017-10-18 ) [2] => Array ( [type] => URL [name] => room [value] => Array ( ) ) ) ) [data] => Array ( ) )