달력소스 질문입니다 ㅠ.ㅠ 채택완료

</p>

<p>if (!function_exists("get_first_day")) {

    // mktime() 함수는 1970 ~ 2038년까지만 계산되므로 사용하지 않음

    // 참고 : <a href="http://phpschool.com/bbs2/inc_view.html?id=3924&code=tnt2&start=0&mode=search&s_que=mktime&field=title&operator=and&period=all" target="_blank" rel="noopener noreferrer">http://phpschool.com/bbs2/inc_view.html?id=3924&code=tnt2&start=0&mode=search&s_que=mktime&field=title&operator=and&period=all</a>

    function get_first_day($year, $month)

    {

        $day = 1;

        $spacer = array(0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4);

        $year = $year - ($month < 3);

        $result = ($year + (int) ($year/4) - (int) ($year/100) + (int) ($year/400) + $spacer[$month-1] + $day) % 7;

        return $result;

    }

}</p>

<p>// 예약일 선택하면 넘어오는 지점

if ($_GET['param1']) 

{

    $hospitalFK = $_GET['param1']; 

    unset($param1);

}</p>

<p>if ($_GET['param2']) 

{

    $schedule_ym = $_GET['param2']; 

    unset($param2);

}</p>

<p>// 오늘

$today = getdate($g4[server_time]);</p>

<p>