我想要计算两个日期时间之间的差值并将其返回为一个datetime
类型。我已经找到了使用diff
函数的例子,但我似乎无法正确地使用它。
$timein = date("Y-m-d H:i:s");
$timeout = date("Y-m-d 20:00:00");
$totaltime = $timein->diff($timeout);
然而$totaltime
记录在我的数据库中为0000-00-00 00:00:00
。这是因为我没有格式化我的totaltime变量吗?
我想要计算两个日期时间之间的差值并将其返回为一个datetime
类型。我已经找到了使用diff
函数的例子,但我似乎无法正确地使用它。
$timein = date("Y-m-d H:i:s");
$timeout = date("Y-m-d 20:00:00");
$totaltime = $timein->diff($timeout);
然而$totaltime
记录在我的数据库中为0000-00-00 00:00:00
。这是因为我没有格式化我的totaltime变量吗?
我不确定您在寻找什么样的差异格式,但以下是使用DateTime执行此操作的方法
$datetime1 = new DateTime();
$datetime2 = new DateTime('2011-01-03 17:13:00');
$interval = $datetime1->diff($datetime2);
$elapsed = $interval->format('%y years %m months %a days %h hours %i minutes %s seconds');
echo $elapsed;
diff()
http://codepad.viper-7.com/FqGsrO - John Conde<?php
$datetime1 = new DateTime('2009-10-11 12:12:00');
$datetime2 = new DateTime('2009-10-13 10:12:00');
$interval = $datetime1->diff($datetime2);
echo $interval->format('%Y-%m-%d %H:%i:%s');
?>
printf()
或sprintf()
是一种优雅的方式,可以使用所需的前导零格式化整数 - DateTime类的format()
方法不允许应用前导零。$datetime1 = new DateTime('2017-04-26 18:13:06');
$datetime2 = new DateTime('2011-01-17 17:13:00'); // change the millennium to see output difference
$diff = $datetime1->diff($datetime2);
// this will get you very close, but it will not pad the digits to conform with your expected format
echo "Raw Difference: " . $diff->format('%y years %m months %d days %h hours %i minutes %s seconds') . "\n";
// Notice the impact when you change $datetime2's millennium from '1' to '2'
echo "Invalid format: " . $diff->format('%Y-%m-%d %H:%i:%s') . "\n"; // only H does it right
// isolated datetime diff values
$details = array_intersect_key((array)$diff,array_flip(['y','m','d','h','i','s']));
echo '$diff = ' . var_export($details, true) . "\n";
// now all components of datetime are properly padded
printf(
"Valid format: %04d-%02d-%02d %02d:%02d:%02d",
$diff->y,
$diff->m,
$diff->d,
$diff->h,
$diff->i,
$diff->s
);
输出:
Raw Difference: 6 years 3 months 9 days 1 hours 0 minutes 6 seconds
Invalid format: 06-3-9 01:0:6
$diff = array (
'y' => 6,
'm' => 3,
'd' => 9,
'h' => 1,
'i' => 0,
's' => 6,
)
Valid format: 0006-03-09 01:00:06
$diffs = [
'years' => 'y',
'months' => 'm',
'days' => 'd',
'hours' => 'h',
'minutes' => 'i',
'seconds' => 's'
];
$interval = $timeout->diff($timein);
$diffArr = [];
foreach ($diffs as $k => $v) {
$d = $interval->format('%' . $v);
if ($d > 0) {
$diffArr[] = $d . ' ' . $k;
}
}
$diffStr = implode(', ', $diffArr);
echo 'Difference: ' . ($diffStr == '' ? '0' : $diffStr) . PHP_EOL;
我收集了许多主题,以制作具有多个输出(年、月、日、小时、分钟、秒)的通用函数,可以将其转换为字符串或解析为整数,并且如果您需要知道差异的方向,则可以使用+-。
使用示例:
$date1='2016-05-27 02:00:00';
$format='Y-m-d H:i:s';
echo timeDifference($date1, $format, '2017-08-30 00:01:59', $format);
#1 years 3 months 2 days 22 hours 1 minutes 59 seconds (string)
echo timeDifference($date1, $format, '2017-08-30 00:01:59', $format,false, '%a days %h hours');
#459 days 22 hours (string)
echo timeDifference('2016-05-27 00:00:00', $format, '2017-08-30 00:01:59', $format,true, '%d days -> %H:%I:%S', true);
#-3 days -> 00:01:59 (string)
echo timeDifference($date1, $format, '2016-05-27 00:05:51', $format, false, 'seconds');
#9 (string)
echo timeDifference($date1, $format, '2016-05-27 07:00:00', $format, false, 'hours');
#5 (string)
echo timeDifference($date1, $format, '2016-05-27 07:00:00', $format, true, 'hours');
#-5 (string)
echo timeDifference($date1, $format, '2016-05-27 07:00:00', $format, true, 'hours',true);
#-5 (int)
函数
function timeDifference($date1_pm_checked, $date1_format,$date2, $date2_format, $plus_minus=false, $return='all', $parseInt=false)
{
$strtotime1=strtotime($date1_pm_checked);
$strtotime2=strtotime($date2);
$date1 = new DateTime(date($date1_format, $strtotime1));
$date2 = new DateTime(date($date2_format, $strtotime2));
$interval=$date1->diff($date2);
$plus_minus=(empty($plus_minus)) ? '' : ( ($strtotime1 > $strtotime2) ? '+' : '-'); # +/-/no_sign before value
switch($return)
{
case 'y';
case 'year';
case 'years';
$elapsed = $interval->format($plus_minus.'%y');
break;
case 'm';
case 'month';
case 'months';
$elapsed = $interval->format($plus_minus.'%m');
break;
case 'a';
case 'day';
case 'days';
$elapsed = $interval->format($plus_minus.'%a');
break;
case 'd';
$elapsed = $interval->format($plus_minus.'%d');
break;
case 'h';
case 'hour';
case 'hours';
$elapsed = $interval->format($plus_minus.'%h');
break;
case 'i';
case 'minute';
case 'minutes';
$elapsed = $interval->format($plus_minus.'%i');
break;
case 's';
case 'second';
case 'seconds';
$elapsed = $interval->format($plus_minus.'%s');
break;
case 'all':
$parseInt=false;
$elapsed = $plus_minus.$interval->format('%y years %m months %d days %h hours %i minutes %s seconds');
break;
default:
$parseInt=false;
$elapsed = $plus_minus.$interval->format($return);
}
if($parseInt)
return (int) $elapsed;
else
return $elapsed;
}
这是我的完整帖子,主题为: PHP查找两个日期时间之间的差异
用法示例
echo timeDifference('2016-05-27 02:00:00', 'Y-m-d H:i:s', '2017-08-30 00:01:59', 'Y-m-d H:i:s', false, '%a days %h hours');
#459 days 22 hours (string)
echo timeDifference('2016-05-27 02:00:00', 'Y-m-d H:i:s', '2016-05-27 07:00:00', 'Y-m-d H:i:s', true, 'hours',true);
#-5 (int)