Seven very useful Carbon methods in Laravel

When writing PHP applications, we often need to deal with dates and times. Carbon inherits from the API extension of the PHP DateTime class, which makes it easier to deal with dates and times. This article mainly shares with you seven very useful but very difficult to use in Laravel. The Carbon method that few people know about, friends in need can refer to it.

Preface

Everyone should know that we use Carbon to handle dates and times many times, right? But how many people have read the complete document to understand what methods it has? In addition to the well-known now() and format() methods, Carbon has many other useful methods.

Let’s take a look.

1. isX: True/False

There are many ways to determine whether the Carbon object is today, weekend, leap year, etc. , the following are listed in official documents:

<?php
$dt->isWeekday();
$dt->isWeekend();
$dt->isYesterday();
$dt->isToday();
$dt->isTomorrow();
$dt->isFuture();
$dt->isPast();
$dt->isLeapYear();
$dt->isSameDay(Carbon::now());

2. isBirthday

In addition to the list above, Carbon also has a method to determine if a date is someone's birthday. In addition to checking the month and day individually, you can also do this:

$born = Carbon::createFromDate(1987, 4, 23);
$noCake = Carbon::createFromDate(2014, 9, 26);
$yesCake = Carbon::createFromDate(2014, 4, 23);
var_dump($born->isBirthday($noCake));  // bool(false)
var_dump($born->isBirthday($yesCake));

3. StartOfX and EndOfX lists

The following are the startOfX series and endOfX series:

$dt = Carbon::create(2012, 1, 31, 12, 0, 0);
echo $dt->startOfDay(); // 2012-01-31 00:00:00
echo $dt->endOfDay(); // 2012-01-31 23:59:59
echo $dt->startOfMonth(); // 2012-01-01 00:00:00
echo $dt->endOfMonth(); // 2012-01-31 23:59:59
echo $dt->startOfYear(); // 2012-01-01 00:00:00
echo $dt->endOfYear(); // 2012-12-31 23:59:59
echo $dt->startOfDecade(); // 2010-01-01 00:00:00
echo $dt->endOfDecade(); // 2019-12-31 23:59:59
echo $dt->startOfCentury(); // 2000-01-01 00:00:00
echo $dt->endOfCentury(); // 2099-12-31 23:59:59
echo $dt->startOfWeek(); // 2012-01-30 00:00:00
echo $dt->endOfWeek(); // 2012-02-05 23:59:59

4. Today, Tomorrow, Yesterday

Three simple but very useful methods, no need to call now(), then replace the hours, minutes and seconds, and then add or subtract the number of days:

$today = Carbon::today(); // assuming 2016-06-24
echo $today;        // 2016-06-24 00:00:00
$tomorrow = Carbon::tomorrow();
echo $tomorrow;       // 2016-06-25 00:00:00
$yesterday = Carbon::yesterday();
echo $yesterday;       // 2016-06-23 00:00:00

5. DiffForHumans + Localization

You may have used this method called diffForHumans() – it will be in a convenient The method people read returns the difference between two dates:

echo Carbon::now()->subDays(5)->diffForHumans(); // 5 days ago

But did you know it can be localized too? Just change the location, such as Chinese:

Carbon::setLocale('zh');
echo Carbon::now()->addYear()->diffForHumans(); // 一年前

6. Change now() to any time you want

$knownDate = Carbon::create(2001, 5, 21, 12); // 创建测试日期
Carbon::setTestNow($knownDate);      // set the mock 
echo Carbon::now();         // 2001-05-21 12:00:00

7. Weekly constants

can be passed through the following constants To replace the day of the week:

var_dump(Carbon::SUNDAY);       // int(0)
var_dump(Carbon::MONDAY);       // int(1)
var_dump(Carbon::TUESDAY);       // int(2)
var_dump(Carbon::WEDNESDAY);      // int(3)
var_dump(Carbon::THURSDAY);      // int(4)
var_dump(Carbon::FRIDAY);       // int(5)
var_dump(Carbon::SATURDAY);      // int(6)

Do you know all the useful methods mentioned above? You can list the methods you find useful in the comments.

Summarize

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