查找以m / d / Y格式存储的两个日期之间的天数

Question

我想计算expiry date百分比。但我的starting date和expirydate格式为m/d/Y。我如何找到starting date之间的天数和ending date ???这是我的代码......

 foreach ($result['query'] as $row) {
            $validitystart = $row->validitystart;
            $expirydate = $row->expirydate;
            $today = date('m/d/Y');
            $maxdiff = date_diff($expirydate, $validitystart);
            $diff = date_diff($expirydate, $today);
            $percentage = ($diff * 100) / $maxdiff;
        }

Answer 1

在StackOverflow上的数百个重复项中，您可能已经找到了类似的东西并进行了一些搜索

$date1 = DateTime::createFromFormat('m/d/Y', $date1);
$date2 = DateTime::createFromFormat('m/d/Y', $date2);

$diffDays = $date2->diff($date1)->format("%a");