PHP中两个unix时间戳之间的实际天数

问题描述 投票:1回答:5

不,这不是日期之间的标准+86400秒。

$start_time = strtotime("2012-01-15 23:59");
$end_time = strtotime("2012-01-16 00:05");

$ daysInBetweenTimestamps =?

这是我目前面临的问题,因为时间戳可能在5分钟到5小时之间,例如,使用标准+86400查看是否超过一天是行不通的,并且由于数量过多我正在建立索引的过程,我想看看是否有更有效的方法来检查新的一天是否开始,而不是在第二层上执行date(“ d”)> $ prevDay。

第一个示例的测试更新:

echo "Absolute Start: ".date("Y-m-d H:i:s",$start)."<br />";
echo "Absolute End: ".date("Y-m-d H:i:s",$end)."<br />";
echo "Interval Used: $interval(seconds) OR ".($interval / 60)."(minutes)<br />";
$numberOfIntervals = ceil(($end - $start) / $interval);
echo "Number of intervals:$numberOfIntervals<br /><br />";
if ($numberOfIntervals > 0){
    for ($i = 0; $i < $numberOfIntervals; $i++){
        $curStart = $start + ($interval * $i);
        $curEnd = $curStart + $interval;
        if ($curEnd > $end){$curEnd = $end;}
        echo "Interval Start DateTime: ".date("Y-m-d H:i:s",$curStart)."<br />";
        echo "Interval End DateTime: ".date("Y-m-d H:i:s",$curEnd)."<br />";
/* EXAMPLE PHP5.3 DateTime START - NOT WORKING */
        $startDiff = new DateTime("@$curStart");
        $endDiff = new DateTime("@$curEnd");
        $diff = $startDiff->diff($endDiff);
        echo $diff->format("%a") . " days<br />";
        if ($diff->format("%a") > 0){
/* EXAMPLE PHP5.3 DateTime END */
/* EXAMPLE Julian START - WORKS */
            $days = unixtojd($curEnd) - unixtojd($curStart);
            echo "Number of days:$days<br />";
            if ($days > 0){
/* EXAMPLE Julian END */
                // Multiple days so the log files are split
                echo "Multiple days so log files are split<br />";
            }else{
                echo "Single day so log files are NOT split<br />";
            }
        }
    }

输出看起来如下:

Absolute Start: 2012-01-25 23:59:00
Absolute End: 2012-01-26 00:02:00
Interval Used: 180(seconds) OR 3(minutes)
Number of intervals:1
Interval Start DateTime: 2012-01-25 23:59:00
Interval End DateTime: 2012-01-26 00:02:00

===例1开始===

0 days
Single day so log files are NOT split

我是否只是在差异上缺少某些东西?

===示例1结束===

===示例3开始===

Number of days:1
Multiple days so log files are split

===示例3结束===

php datetime timestamp days
5个回答
2
投票

使用Julian Day

$days = unixtojd($t1) - unixtojd($t2);

或者如果您不在UTC中...

$days = unixtojd($t1 - $tz) - unixtojd($t2 - $tz);

其中$tz是您的时区偏移量,以秒为单位。


2
投票

使用php5.3的DateInterval类:

$now = new DateTime();
$then = new DateTime("@123456789"); //this is your timestamp

$diff = $now->diff($then);

echo "then: " . $then->format("Y-m-d") . "\n";
echo $diff->format("%a") . " days\n";

输出:

then: 1973-11-29
13937 days

0
投票

将时间戳取整到最接近的86400秒,求和,然后除以86400:

$start_time = strtotime("2012-01-15 23:59");
$end_time = strtotime("2012-01-16 00:05");

$start_time -= $start_time % 86400;
$end_time -= $end_time % 86400;

$days = ($end_time - $start_time) / 86400;

向下舍入使该时间戳记为当天的午夜,而除法将为您提供自该纪元以来的天数。不过,这仅适用于UTC。


0
投票
<?php
$start_time = strtotime("2012-01-15 23:59");
$end_time = strtotime("2012-01-16 00:05");

$time_zone = 19800; # My time zone: UTC+0530 hours = UTC+19800 seconds

$days = intval(($end_time + $time_zone) / 86400) -
        intval(($start_time + $time_zone) / 86400);

echo "$days\n";
?>

0
投票

$ current_time = time(); //或您的日期$ your_date = strtotime(“ 2020-04-27”); //这是我的提交时间。

$ date_diff = $ current_time-$ your_date;$ num_of_days = round($ date_diff /(60 * 60 * 24));

//您的答案在$ num_of_days变量中

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