使用 PHP 获取第二天和前一天

get next and previous day with PHP

提问by tonoslfx

I have got two arrows set up, click for next day, next two days, soon and previous day, two days ago, soon. the code seem not working? as it only get one next and previous day.

我已经设置了两个箭头，点击第二天，接下来的两天，很快和前一天，两天前，很快。代码似乎不起作用？因为它只会在下一天和前一天得到一个。

<a href="home.php?date=<?= date('Y-m-d', strtotime('-1 day', strtotime($date))) ?>" class="prev_day" title="Previous Day" ></a> 
<a href="home.php?date=<?= date('Y-m-d', strtotime('+1 day', strtotime($date))) ?>" class="next_day" title="Next Day" ></a>

is there a way if i click the next button, the date will continously change for the next day. for a moment it will only get one day ahead

有没有办法，如果我点击下一步按钮，第二天的日期会不断变化。有那么一刻它只会提前一天

回答by Alan Whitelaw

date('Y-m-d', strtotime('+1 day', strtotime($date)))

Should read

应该读

date('Y-m-d', strtotime(' +1 day'))

---

---

Update to answer question asked in comment about continuously changing the date.

更新以回答有关不断更改日期的评论中提出的问题。

<?php
$date = isset($_GET['date']) ? $_GET['date'] : date('Y-m-d');
$prev_date = date('Y-m-d', strtotime($date .' -1 day'));
$next_date = date('Y-m-d', strtotime($date .' +1 day'));
?>

<a href="?date=<?=$prev_date;?>">Previous</a>
<a href="?date=<?=$next_date;?>">Next</a>

This will increase and decrease the date by one from the date you are on at the time.

这将从您当时所在的日期增加和减少日期。

回答by Erald Karakashi

Requirement: PHP 5 >= 5.2.0

要求：PHP 5 >= 5.2.0

You should make use of the DateTimeand DateIntervalclasses in Php, and things will turn to be very easy and readable.

您应该使用PHP中的DateTime和DateInterval类，事情将变得非常容易和可读。

Example: Lets get the previous day.

示例：让我们得到前一天。

// always make sure to have set your default timezone
date_default_timezone_set('Europe/Berlin');

// create DateTime instance, holding the current datetime
$datetime = new DateTime();

// create one day interval
$interval = new DateInterval('P1D');

// modify the DateTime instance
$datetime->sub($interval);

// display the result, or print_r($datetime); for more insight 
echo $datetime->format('Y-m-d');


/** 
* TIP:
* if you dont want to change the default timezone, use
* use the DateTimeZone class instead.
*
* $myTimezone = new DateTimeZone('Europe/Berlin');
* $datetime->setTimezone($myTimezone); 
*
* or just include it inside the constructor 
* in this form new DateTime("now",   $myTimezone);
*/

References: Modern PHP, New Features and Good Practices By Josh Lockhart

参考资料：Josh Lockhart 的现代 PHP、新功能和良好实践

回答by Pandurang Zambare

Use

用

$time = time();

For previous day -

对于前一天 -

date("Y-m-d", mktime(0,0,0,date("n", $time),date("j",$time)- 1 ,date("Y", $time)));

For 2 days ago

2 天前

date("Y-m-d", mktime(0,0,0,date("n", $time),date("j",$time) -2 ,date("Y", $time)));

For Next day -

第二天 -

date("Y-m-d", mktime(0,0,0,date("n", $time),date("j",$time)+ 1 ,date("Y", $time)));

For next 2 days

未来 2 天

date("Y-m-d", mktime(0,0,0,date("n", $time),date("j",$time) +2 ,date("Y", $time)));

回答by Prajwal GN

strtotime('-1 day', strtotime($date))

This returns the number of difference in seconds of the given date and the $date.so you are getting wrong result .

这将返回给定日期和 $date.so 你得到错误结果的秒数差异。

Suppose $date is todays date and -1 day means it returns -86400 as the difference and the when you try using date you will get 1969-12-31 Unix timestamp start date.

假设 $date 是今天的日期，-1 天意味着它返回 -86400 作为差异，当您尝试使用 date 时，您将获得 1969-12-31 Unix 时间戳开始日期。

回答by SarwarCSE

Simply use this

简单地使用这个

echo date('Y-m-d',strtotime("yesterday"));
echo date('Y-m-d',strtotime("tomorrow"));

回答by shadyyx

it is enough to call it this way:

可以这样称呼它就足够了：

<a href="home.php?date=<?= date('Y-m-d', strtotime('-1 day')) ?>" class="prev_day" title="Previous Day" ></a>
<a href="home.php?date=<?= date('Y-m-d', strtotime('+1 day')) ?>" class="next_day" title="Next Day" ></a>

Also see the documentation.

另请参阅文档。

回答by Santosh Shah

always make sure to have set your default timezone

始终确保设置了默认时区

date_default_timezone_set('Europe/Berlin');

create DateTime instance, holding the current datetime

创建 DateTime 实例，保存当前日期时间

$datetime = new DateTime();

create one day interval

创建一天间隔

$interval = new DateInterval('P1D');

modify the DateTime instance

修改 DateTime 实例

$datetime->sub($interval);

display the result, or print_r($datetime);for more insight

显示结果，或print_r($datetime);了解更多信息

echo $datetime->format('Y-m-d');

TIP:

提示：

If you don't want to change the default timezone, use the DateTimeZoneclass instead.

如果您不想更改默认时区，请改用DateTimeZone该类。

$myTimezone = new DateTimeZone('Europe/Berlin');
$datetime->setTimezone($myTimezone); 

or just include it inside the constructor in this form new DateTime("now", $myTimezone);

或者只是以这种形式将它包含在构造函数中 new DateTime("now", $myTimezone);

回答by Alex Joe

You could use 'now'as string to get today's/tomorrow's/yesterday's date:

您可以使用'now'作为字符串来获取今天/明天/昨天的日期：

$previousDay = date('Y-m-d', strtotime('now - 1day'));
$toDay       = date('Y-m-d', strtotime('now'));
$nextDay     = date('Y-m-d', strtotime('now + 1day'));

回答by Ponmathavan Mani

Php script -1****its to Next Date

Php 脚本 -1**** 到下一个日期

<?php

$currentdate=date('Y-m-d');


$date_arr=explode('-',$currentdate);


$next_date=
Date("Y-m-d",mktime(0,0,0,$date_arr[1],$date_arr[2]+1,$date_arr[0]));



echo $next_date;
?>**

**Php script -1****its to Next year**


<?php

$currentdate=date('Y-m-d');


$date_arr=explode('-',$currentdate);


$next_date=
Date("Y-m-d",mktime(0,0,0,$date_arr[1],$date_arr[2],$date_arr[0]+1));



echo $next_date;
?>

回答by Yosafat Ksatria

just in case if you want next day or previous day from today's date

以防万一，如果您想要从今天的日期开始的第二天或前一天

date("Y-m-d", mktime(0, 0, 0, date("m"),date("d")-1,date("Y")));

date("Ymd", mktime(0, 0, 0, date("m"),date("d")-1,date("Y")));

just change the "-1" to the "+1" regards, Yosafat

只需将“-1”更改为“+1”问候，Yosafat