добавить дату к url

на wordpress пытаюсь по api получить календарь.

$date=date("Y/m/d");
$response = wp_remote_get('http://api.calendar.drevle.com/2020/07/10');
$jsonString = wp_remote_retrieve_body( $response );
 
$cart = json_decode( $jsonString );
echo $date . "<br>";
echo $cart->day->gregorianDate . "<br>";
echo $cart->day->dayOfWeek . "<br>";
echo $cart->day->julianDate . "<br>";
echo $cart->day->tone . "<br>";
echo $cart->day->saints . "<br>";
echo $cart->day->fast . "<br>";
echo $cart->day->bows . "<p>";
echo $cart->day->dailyFeast . "<br>";

как в url вместо http://api.calendar.drevle.com/2020/07/10 подставить http://api.calendar.drevle.com/+сегодняшняя дата?