作为程序员一定要保持良好的睡眠，才能好编程

  2. 首页
  3. Php

php-Carbon超全日志组件库

发布时间：2020-04-09



JavaScript 日期处理类库   http://momentjs.cn/

image.png

image.png



<?php


Carbon 是php的日期处理类库（A simple PHP API extension for DateTime.）。

Carbon 继承了PHP的 Datetime 类，所以 Carbon 中没有涉及到的，但在 Datetime 中已经实现的方法都是可以使用的。

$ composer require nesbot/carbon


require 'path/to/Carbon.php';
use Carbon\Carbon;
printf("Now: %s", Carbon::now());
$carbon = new Carbon();                  // equivalent to Carbon::now()
$carbon = new Carbon('first day of January 2008', 'America/Vancouver');
echo get_class($carbon);                 // 'Carbon\Carbon'
$carbon = Carbon::now(-5);

你将会喜欢上用 parse() 方法来代替原有繁琐的构造方式

echo (new Carbon('first day of December 2008'))->addWeeks(2);     // 2008-12-15 00:00:00
echo Carbon::parse('first day of December 2008')->addWeeks(2);    // 2008-12-15 00:00:00

类似 now() 这样直接返回 Carbon 实例的方法还有 today(), tomorrow(),yesterday()，
他们都接受一个 timezone 类型的参数，最后得到的结果时间部分都是 00:00:00

$now = Carbon::now();
echo $now;                               // 2016-06-24 15:18:34
$today = Carbon::today();
echo $today;                             // 2016-06-24 00:00:00
$tomorrow = Carbon::tomorrow('Europe/London');
echo $tomorrow;                          // 2016-06-25 00:00:00
$yesterday = Carbon::yesterday();
echo $yesterday;                         // 2016-06-23 00:00:00


Carbon::createFromFormat($format, $time, $tz);


$dt = Carbon::parse('1975-05-21 22:23:00.123456');
echo $dt->micro;                                       // 123456
echo $dt->copy()->micro;                               // 123456



获取PHP支持的有效时间取值范围：最早时间、最晚时间
echo Carbon::maxValue();                               // '2038-01-18 22:14:07'
echo Carbon::minValue();

$product = new SeasonalProduct(100);
Carbon::setTestNow(Carbon::parse('first day of March 2000'));
echo $product->getPrice();                                             // 100
Carbon::setTestNow(Carbon::parse('first day of December 2000'));
echo $product->getPrice();                                             // 200
Carbon::setTestNow(Carbon::parse('first day of May 2000'));
echo $product->getPrice();                                             // 100
Carbon::setTestNow();



一些相关的用法也可以得到一个模拟的 now 实例，返回相应的模拟数据。


以下是当前支持的时间转换字

this
net
last
this
next
last
tomorrow
yesterday
+
-
first
last
ago

获取器通过PHP的 __get() 方式实现。可以直接通过一下方式直接获取到属性的值。


$dt = Carbon::parse('2012-9-5 23:26:11.123789');

// These getters specifically return integers, ie intval()
var_dump($dt->year);                                         // int(2012)
var_dump($dt->month);                                        // int(9)
var_dump($dt->day);                                          // int(5)
var_dump($dt->hour);                                         // int(23)
var_dump($dt->minute);                                       // int(26)
var_dump($dt->second);                                       // int(11)
var_dump($dt->micro);                                        // int(123789)
var_dump($dt->dayOfWeek);                                    // int(3)
var_dump($dt->dayOfYear);                                    // int(248)
var_dump($dt->weekOfMonth);                                  // int(1)
var_dump($dt->weekOfYear);                                   // int(36)
var_dump($dt->daysInMonth);                                  // int(30)
var_dump($dt->timestamp);                                    // int(1346901971)
var_dump(Carbon::createFromDate(1975, 5, 21)->age);          // int(41) calculated vs now in the same tz
var_dump($dt->quarter);                                      // int(3)

// Returns an int of seconds difference from UTC (+/- sign included)
var_dump(Carbon::createFromTimestampUTC(0)->offset);         // int(0)
var_dump(Carbon::createFromTimestamp(0)->offset);            // int(-18000)

// Returns an int of hours difference from UTC (+/- sign included)
var_dump(Carbon::createFromTimestamp(0)->offsetHours);       // int(-5)

// Indicates if day light savings time is on
var_dump(Carbon::createFromDate(2012, 1, 1)->dst);           // bool(false)
var_dump(Carbon::createFromDate(2012, 9, 1)->dst);           // bool(true)

// Indicates if the instance is in the same timezone as the local timezone
var_dump(Carbon::now()->local);                              // bool(true)
var_dump(Carbon::now('America/Vancouver')->local);           // bool(false)

// Indicates if the instance is in the UTC timezone
var_dump(Carbon::now()->utc);                                // bool(false)
var_dump(Carbon::now('Europe/London')->utc);                 // bool(false)
var_dump(Carbon::createFromTimestampUTC(0)->utc);            // bool(true)

// Gets the DateTimeZone instance
echo get_class(Carbon::now()->timezone);                     // DateTimeZone
echo get_class(Carbon::now()->tz);                           // DateTimeZone

// Gets the DateTimeZone instance name, shortcut for ->timezone->getName()
echo Carbon::now()->timezoneName;                            // America/Toronto
echo Carbon::now()->tzName;                                  // America/Toronto


Setters 通过PHP的 __set() 方法实现。值得注意的是，通过这种方式设置时间戳时，时区不会相对于时间戳而改变。如果需要改变时区的话，需要针对时区单独设置。

$dt = Carbon::now();

$dt->year = 1975;
$dt->month = 13;             // would force year++ and month = 1
$dt->month = 5;
$dt->day = 21;
$dt->hour = 22;
$dt->minute = 32;
$dt->second = 5;

$dt->timestamp = 169957925;  // This will not change the timezone

// Set the timezone via DateTimeZone instance or string
$dt->timezone = new DateTimeZone('Europe/London');
$dt->timezone = 'Europe/London';
$dt->tz = 'Europe/London';

所有类似 toXXXString() 这样的方法都依赖于DateTime::format()。__toString() 方法允许 Carbon 实例被打印时以一种可读性更好的方式被打印出来。

$dt = Carbon::create(1975, 12, 25, 14, 15, 16);

var_dump($dt->toDateTimeString() == $dt);          // bool(true) => uses __toString()
echo $dt->toDateString();                          // 1975-12-25
echo $dt->toFormattedDateString();                 // Dec 25, 1975
echo $dt->toTimeString();                          // 14:15:16
echo $dt->toDateTimeString();                      // 1975-12-25 14:15:16
echo $dt->toDayDateTimeString();                   // Thu, Dec 25, 1975 2:15 PM

// ... of course format() is still available
echo $dt->format('l jS \\of F Y h:i:s A');         // Thursday 25th of December 1975 02:15:16 PM

echo $dt->toCookieString();    // Thursday, 25-Dec-1975 14:15:16 EST


如果要判断当前实例对应的时间，是否在其他两个实例对应的时间之间，可以用 between() 方法。
如果提供了第三个参数，并且为 true，将会进行 >= 和 <= 的操作。如果为 false，会进行 > 和 < 的操作。该参数默认是 true 。

$first = Carbon::create(2012, 9, 5, 1);
$second = Carbon::create(2012, 9, 5, 5);
var_dump(Carbon::create(2012, 9, 5, 3)->between($first, $second));          // bool(true)
var_dump(Carbon::create(2012, 9, 5, 5)->between($first, $second));          // bool(true)
var_dump(Carbon::create(2012, 9, 5, 5)->between($first, $second, false));   // bool(false)


$dt = Carbon::create(2012, 1, 31, 0);

echo $dt->toDateTimeString();            // 2012-01-31 00:00:00

echo $dt->addYears(5);                   // 2017-01-31 00:00:00
echo $dt->addYear();                     // 2018-01-31 00:00:00
echo $dt->subYear();                     // 2017-01-31 00:00:00
echo $dt->subYears(5);                   // 2012-01-31 00:00:00

echo $dt->addMonths(60);                 // 2017-01-31 00:00:00
echo $dt->addMonth();                    // 2017-03-03 00:00:00 equivalent of $dt->month($dt->month + 1); so it wraps
echo $dt->subMonth();                    // 2017-02-03 00:00:00
echo $dt->subMonths(60);                 // 2012-02-03 00:00:00

echo $dt->addDays(29);                   // 2012-03-03 00:00:00
echo $dt->addDay();                      // 2012-03-04 00:00:00
echo $dt->subDay();                      // 2012-03-03 00:00:00
echo $dt->subDays(29);                   // 2012-02-03 00:00:00

echo $dt->addWeekdays(4);                // 2012-02-09 00:00:00
echo $dt->addWeekday();                  // 2012-02-10 00:00:00
echo $dt->subWeekday();                  // 2012-02-09 00:00:00
echo $dt->subWeekdays(4);                // 2012-02-03 00:00:00

echo $dt->addWeeks(3);                   // 2012-02-24 00:00:00
echo $dt->addWeek();                     // 2012-03-02 00:00:00
echo $dt->subWeek();                     // 2012-02-24 00:00:00
echo $dt->subWeeks(3);                   // 2012-02-03 00:00:00

echo $dt->addHours(24);                  // 2012-02-04 00:00:00
echo $dt->addHour();                     // 2012-02-04 01:00:00
echo $dt->subHour();                     // 2012-02-04 00:00:00
echo $dt->subHours(24);                  // 2012-02-03 00:00:00

echo $dt->addMinutes(61);                // 2012-02-03 01:01:00
echo $dt->addMinute();                   // 2012-02-03 01:02:00
echo $dt->subMinute();                   // 2012-02-03 01:01:00
echo $dt->subMinutes(61);                // 2012-02-03 00:00:00

echo $dt->addSeconds(61);                // 2012-02-03 00:01:01
echo $dt->addSecond();                   // 2012-02-03 00:01:02
echo $dt->subSecond();                   // 2012-02-03 00:01:01
echo $dt->subSeconds(61);                // 2012-02-03 00:00:00





https://blog.csdn.net/for_happy123/article/details/52921089






更多>> Php