在PHP中聚合两个带时间值的字符串

Question

经过几次尝试后，我未能获得正确的结果。情况是这样的:

$morning = '01:05:12';
$evening = '14:05:29';
$sum = gmdate('H:i:s', strtotime($morning) + strtotime($evening));
echo $sum;

它不工作，sum变量输出06:42:25，这当然不正确。我该如何解决这个问题?

谢谢

Answer 1

function strToDuration($str) {
    sscanf($str, '%d:%d:%d', $hours, $minutes, $seconds);
    return $seconds + ($minutes * 60) + ($hours * 60 * 60);
}
function durationToStr($duration) {
    $hours    = floor($duration / (60 * 60));
    $seconds  = $duration % (60 * 60);
    $minutes  = floor($seconds / 60);
    $seconds %= 60;
    return sprintf('%02d:%02d:%02d', $hours, $minutes, $seconds);
}
$morning = '01:05:12';
$evening = '14:05:29';
echo durationToStr(strToDuration($morning) + strToDuration($evening));

Answer 2

首先从时间中减去strtotime("00:00:00")。然后把它们加起来，格式化。

$morning = '01:05:12';
$evening = '14:05:29';
$sum = gmdate('H:i:s', (strtotime("01:05:12")-strtotime("00:00:00"))+(strtotime("14:05:29")-strtotime("00:00:00")));
echo $sum;

Answer 3

您的时区设置是什么(date_default_timezone_get()) ?strtotime()在生成时间戳时假设当前时区(如果没有指定)，而gmdate()输出UTC时间。

Upd:另外，请参阅关于持续时间的注释-来自strtotime的时间戳将被扩展为"01:05:12 of %current date%"，因此它们的总和将不仅仅是"new time of %current date%"。

Answer 4

计算时间的简单示例:

$morning = '01:05:12';
$evening = '14:05:29';
$morning = strtotime("1970-01-01 $morning UTC");   # convert time to seconds
$evening = strtotime("1970-01-01 $evening UTC");   # same as above
$seconds = $morning + $evening;                    # sum seconds
$hours = floor($seconds / 3600); $seconds %= 3600; # calculate number of hours
$minutes = floor($seconds / 60); $seconds %= 60;   # calculate number of minutes
echo sprintf('%02d:%02d:%02d', $hours, $minutes, $seconds); # 15:10:41

演示

Answer 5

可以使用PHP的DateInterval函数!

function getTotalTime($times)
{
    $h = $m = $s = 0;
    foreach ($times as $time) {
        $time = new DateTime($time);
        $h += $time->format('H');
        $m += $time->format('i');
        $s += $time->format('s');
    }
    $interval = new DateInterval("PT{$h}H{$m}M{$s}S");
    return $interval->format('%H:%I:%S');        
}
$morning = '01:05:12';
$evening = '14:05:29';
echo getTotalTime([$morning, $evening]);