如何用php计算时间?
PHP:如何对foreach语句的结果求和 下面是我的工作代码。正如你将看到的,我试图计算每个月的天数,然后求和如何用php计算时间?,php,Php,PHP:如何对foreach语句的结果求和 下面是我的工作代码。正如你将看到的,我试图计算每个月的天数,然后求和 // A function to calculate days in a given month using just the date function daysInMonths($date) { $month = date("m", strtotime($date)); $year = date("Y", strtotime($date)); $nu
// A function to calculate days in a given month using just the date
function daysInMonths($date)
{
$month = date("m", strtotime($date));
$year = date("Y", strtotime($date));
$num = cal_days_in_month(CAL_GREGORIAN, $month, $year);
return $num;
}
// A function that places the date of an unknown number of months into an array:
function getNextMonths($date, $numberOfMonths)
{
$timestamp_now = strtotime($date);
$months[] = date('Y-m-d', $timestamp_now);
for($i = 1;$i <= $numberOfMonths; $i++)
{
$months[] = date('Y-m-d', (strtotime($months[0].' +'.$i.' month')));
}
// counts the days in each month:
$j=0;
foreach ($months as $days)
{
echo "$j:".daysInMonths($days)."<br>";
++$j;
}
print_r($months);
}
getNextMonths('2011-11-1', '4');
计数后:0:30
1:31
2:31
3:29
4:31 这一切都是正确的,我只是在计算了一个月的天数之后,对数组求和遇到了问题。array\u sum()
$tot = 0;
foreach ($months as $days) {
$tot += daysInMonths(days);
}
echo $tot;
添加一个计数器,如您在中使用的while等 您的
calDaysInMonth()
函数可以替换为一个简单的date('t',$date)
.Wow。那很容易。谢谢。也许你应该举个例子
$tot = 0;
foreach ($months as $days) {
$tot += daysInMonths(days);
}
echo $tot;
$t = array(
31,
28,
31
);
echo array_sum($t); // 90