如何使用PHP找到两个日期之间的天数?
当前回答
// Change this to the day in the future
$day = 15;
// Change this to the month in the future
$month = 11;
// Change this to the year in the future
$year = 2012;
// $days is the number of days between now and the date in the future
$days = (int)((mktime (0,0,0,$month,$day,$year) - time(void))/86400);
echo "There are $days days until $day/$month/$year";
其他回答
你可以通过简单的方法找到约会对象
<?php
$start = date_create('1988-08-10');
$end = date_create(); // Current time and date
$diff = date_diff( $start, $end );
echo 'The difference is ';
echo $diff->y . ' years, ';
echo $diff->m . ' months, ';
echo $diff->d . ' days, ';
echo $diff->h . ' hours, ';
echo $diff->i . ' minutes, ';
echo $diff->s . ' seconds';
// Output: The difference is 28 years, 5 months, 19 days, 20 hours, 34 minutes, 36 seconds
echo 'The difference in days : ' . $diff->days;
// Output: The difference in days : 10398
$early_start_date = date2sql($_POST['early_leave_date']);
$date = new DateTime($early_start_date);
$date->modify('+1 day');
$date_a = new DateTime($early_start_date . ' ' . $_POST['start_hr'] . ':' . $_POST['start_mm']);
$date_b = new DateTime($date->format('Y-m-d') . ' ' . $_POST['end_hr'] . ':' . $_POST['end_mm']);
$interval = date_diff($date_a, $date_b);
$time = $interval->format('%h:%i');
$parsed = date_parse($time);
$seconds = $parsed['hour'] * 3600 + $parsed['minute'] * 60;
// display_error($seconds);
$second3 = $employee_information['shift'] * 60 * 60;
if ($second3 < $seconds)
display_error(_('Leave time can not be greater than shift time.Please try again........'));
set_focus('start_hr');
set_focus('end_hr');
return FALSE;
}
将日期转换为unix时间戳,然后从另一个时间戳中减去一个日期。这将得到以秒为单位的差值,然后除以86400(一天中的秒数),得到该范围内的大约天数。
如果你的日期格式为25.1.2010,01/25/2010或2010-01-25,你可以使用strtotime函数:
$start = strtotime('2010-01-25');
$end = strtotime('2010-02-20');
$days_between = ceil(abs($end - $start) / 86400);
使用ceil将天数四舍五入到下一个全天。如果您希望获得这两个日期之间的完整天数,则使用floor。
如果日期已经是unix时间戳格式,则可以跳过转换,只执行$days_between部分。对于更奇特的日期格式,您可能必须进行一些自定义解析以使其正确。
这是我的改进版本,显示1年2月25天(s),如果通过第二个参数。
class App_Sandbox_String_Util {
/**
* Usage: App_Sandbox_String_Util::getDateDiff();
* @param int $your_date timestamp
* @param bool $hr human readable. e.g. 1 year(s) 2 day(s)
* @see http://stackoverflow.com/questions/2040560/finding-the-number-of-days-between-two-dates
* @see http://qSandbox.com
*/
static public function getDateDiff($your_date, $hr = 0) {
$now = time(); // or your date as well
$datediff = $now - $your_date;
$days = floor( $datediff / ( 3600 * 24 ) );
$label = '';
if ($hr) {
if ($days >= 365) { // over a year
$years = floor($days / 365);
$label .= $years . ' Year(s)';
$days -= 365 * $years;
}
if ($days) {
$months = floor( $days / 30 );
$label .= ' ' . $months . ' Month(s)';
$days -= 30 * $months;
}
if ($days) {
$label .= ' ' . $days . ' day(s)';
}
} else {
$label = $days;
}
return $label;
}
}
我阅读了所有以前的解决方案,没有一个使用PHP 5.3工具:DateTime::Diff和DateInterval::Days
DateInterval::Days精确地包含日期之间的天数。没有必要创造一些特别和奇异的东西。
/**
* We suppose that PHP is configured in UTC
* php.ini configuration:
* [Date]
* ; Defines the default timezone used by the date functions
* ; http://php.net/date.timezone
* date.timezone = UTC
* @link http://php.net/date.timezone
*/
/**
* getDaysBetween2Dates
*
* Return the difference of days between $date1 and $date2 ($date1 - $date2)
* if $absolute parameter is false, the return value is negative if $date2 is after than $date1
*
* @param DateTime $date1
* @param DateTime $date2
* @param Boolean $absolute
* = true
* @return integer
*/
function getDaysBetween2Dates(DateTime $date1, DateTime $date2, $absolute = true)
{
$interval = $date2->diff($date1);
// if we have to take in account the relative position (!$absolute) and the relative position is negative,
// we return negatif value otherwise, we return the absolute value
return (!$absolute and $interval->invert) ? - $interval->days : $interval->days;
}
echo '<h3>2020-03-01 - 2020-02-01: 29 days as it\'s a standard leap year</h3>';
echo getDaysBetween2Dates(new DateTime("2020-03-01"), new DateTime("2020-02-01"), false);
echo '<h3>1900-03-01 - 1900-02-01: 28 days as it\'s a "standard" century</h3>';
echo getDaysBetween2Dates(new DateTime("1900-03-01"), new DateTime("1900-02-01"), false);
echo '<h3>2000-03-01 - 2000-02-01: 29 days as it\'s a century multiple of 400: 2000=400x5</h3>';
echo getDaysBetween2Dates(new DateTime("2000-03-01"), new DateTime("2000-02-01"), false);
echo '<h3>2020-03-01 - 2020-04-01: -28 days as 2020-03-01 is before 2020-04-01</h3>';
echo getDaysBetween2Dates(new DateTime("2020-02-01"), new DateTime("2020-03-01"), false);
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