$total = $_POST['total'];
$myselect = $_POST['myselect'];
$t = '2';
// function date
$date_go = "$rn_gostart"; //กำหนดค้นวันที่เริ่ม
$date_end = "$rn_endstart"; //กำหนดค้นวันที่กลับ
$datetime1 = new DateTime($date_go);
$datetime2 = new DateTime($date_end);
$datetotal = $datetime1->diff($datetime2);
if ($datetotal = 0 ) {
$total = '1800';
}else {
$total= $datetotal->format('%a') * 1800*$myselect; //ผลการคำนวณ
}
问题是,如果我预订这样的一天:10.07.2559 * 07.10.2559 = 0,但是如果它会预订10/01/2559 * 11/07/2559。这是正常的
答案 0 :(得分:1)
变化:
if ($datetotal = 0 )
为:
if ($datetotal == 0 )
您当前的代码为$datetotal
分配零,使您的代码失败:
$total = $datetotal->format('%a') * 1800*$myselect;
格式%a
不正确。它必须由a valid format替换,具体取决于您要执行的操作。
答案 1 :(得分:0)
如果我不使用if else并使用
$total = $_POST['total'];
$myselect = $_POST['myselect'];
// function date
$date_go = "$rn_gostart"; //กำหนดค้นวันที่เริ่ม
$date_end = "$rn_endstart"; //กำหนดค้นวันที่กลับ
$datetime1 = new DateTime($date_go);
$datetime2 = new DateTime($date_end);
$datetotal = $datetime1->diff($datetime2);
$total= $datetotal->format('%a') * 1800 * $myselect;
10.07.2559 * 08.10.2559 = 1800
但是10.07.2559 * 07.10.2559 = 0