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Carbon

Carbon

作者: 杰森跟班 | 来源:发表于2017-07-27 14:32 被阅读0次

    介绍

    Carbon 类继承了PHP DateTime
    类。完整的 Carbon 请看 传送门

    <?php
namespace Carbon;

class Carbon extends \DateTime
{
    // code here
}

    使用

    1. Carbon::parse() 解析 DateTime 默认显示当前时间，可传入时间格式字符串

    • Carbon::setLocale('de'); 设置时区 中国就是 'zh'
      echo Carbon::now()->addYear()->diffForHumans(); // in 1 Jahr

    • Carbon::now(); 参数传时区，默认是本地设置的时区

    • Carbon::setTestNow($knownDate); 设置模式，设置好后，Carbon::now() 就是设置的时间值

    • Carbon::parse('first day of March 2000') 参数类似
      first day of December 2000
      first day of this month
      last day of next month
      first day of previous month

    • 还可以这样玩
      echo new Carbon('tomorrow'); // 2001-05-22 00:00:00 ... notice the time !
      echo new Carbon('yesterday'); // 2001-05-20 00:00:00
      echo new Carbon('next wednesday'); // 2001-05-23 00:00:00
      echo new Carbon('last friday'); // 2001-05-18 00:00:00
      echo new Carbon('this thursday'); // 2001-05-24 00:00:00

    • 获取时区
      echo Carbon::now()->timezoneName; // America/Toronto
      echo Carbon::now()->tzName; // America/Toronto

    • DateTime类。这些结果都可以用 Carbon::parse() 解析出来

    $dt = Carbon::now();
// $dt->toAtomString() is the same as $dt->format(DateTime::ATOM);
echo $dt->toAtomString();      // 1975-12-25T14:15:16-05:00
echo $dt->toCookieString();    // Thursday, 25-Dec-1975 14:15:16 EST
echo $dt->toIso8601String();   // 1975-12-25T14:15:16-0500
echo $dt->toRfc822String();    // Thu, 25 Dec 75 14:15:16 -0500
echo $dt->toRfc850String();    // Thursday, 25-Dec-75 14:15:16 EST
echo $dt->toRfc1036String();   // Thu, 25 Dec 75 14:15:16 -0500
echo $dt->toRfc1123String();   // Thu, 25 Dec 1975 14:15:16 -0500
echo $dt->toRfc2822String();   // Thu, 25 Dec 1975 14:15:16 -0500
echo $dt->toRfc3339String();   // 1975-12-25T14:15:16-05:00
echo $dt->toRssString();       // Thu, 25 Dec 1975 14:15:16 -0500
echo $dt->toW3cString();       // 1975-12-25T14:15:16-05:00
    • 一些简单的判断，返回 true or false 
    $dt = Carbon::now();
echo $dt->isWeekday(); // 是不是周末
echo $dt->isWeekend(); // 是不是工作日
echo $dt->isYesterday();   //是不是昨天
echo $dt->isToday();   // 是不是今天
echo $dt->isTomorrow(); // 明天
echo $dt->isFuture(); // 未来，只要时间比现在晚不管是明天后天都是true
echo $dt->isPast();    // 过去，时间比现在早都是true
echo $dt->isLeapYear(); // 闰年
    • 比较两个时间的大小
    // 取 min
$dt1 = Carbon::create(2012, 1, 1, 0, 0, 0);
$dt2 = Carbon::create(2014, 1, 30, 0, 0, 0);
echo $dt1->min($dt2);                              // 2012-01-01 00:00:00
// 取 max
$dt1 = Carbon::create(2012, 1, 1, 0, 0, 0);
$dt2 = Carbon::create(2014, 1, 30, 0, 0, 0);
echo $dt1->max($dt2);                              // 2014-01-30 00:00:00
// now is the default param 默认当前时间
$dt1 = Carbon::create(2000, 1, 1, 0, 0, 0);
echo $dt1->max();
    • 加法和减法
    $dt = Carbon::create(2012, 1, 31, 0);
echo $dt->toDateTimeString();            // 2012-01-31 00:00:00
// 年
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
// 月
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
 // 日
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
// 星期
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
// 周
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
// 小时
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
// 分钟 
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
// 秒
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
    • 比较两个时间的差值
    echo Carbon::now('America/Vancouver')->diffInSeconds(Carbon::now('Europe/London')); // 0
// 创建时间
$dtOttawa = Carbon::createFromDate(2000, 1, 1, 'America/Toronto');
$dtVancouver = Carbon::createFromDate(2000, 1, 1, 'America/Vancouver');
echo $dtOttawa->diffInHours($dtVancouver);                             // 3
// 相差几小时
echo $dtOttawa->diffInHours($dtVancouver, false);                      // 3 第二个参数是可选的,再次表明如果你想返回值绝对值还是相对值,可能有一个-(负面)签署如果传入日期小于当前实例。 这将默认为true,返回绝对值。 比较是在UTC。
echo $dtVancouver->diffInHours($dtOttawa, false);                      // -3
// 相差几天
$dt = Carbon::create(2012, 1, 31, 0);
echo $dt->diffInDays($dt->copy()->addMonth());                         // 31
echo $dt->diffInDays($dt->copy()->subMonth(), false);                  // -31
// 相差几天
$dt = Carbon::create(2012, 4, 30, 0);
echo $dt->diffInDays($dt->copy()->addMonth());                         // 30
echo $dt->diffInDays($dt->copy()->addWeek());                          // 7
// 相差几分钟
$dt = Carbon::create(2012, 1, 1, 0);
echo $dt->diffInMinutes($dt->copy()->addSeconds(59));                  // 0
echo $dt->diffInMinutes($dt->copy()->addSeconds(60));                  // 1
echo $dt->diffInMinutes($dt->copy()->addSeconds(119));                 // 1
echo $dt->diffInMinutes($dt->copy()->addSeconds(120));                 // 2
// 相差几天
echo $dt->addSeconds(120)->secondsSinceMidnight();                     // 120
    • 时间过滤
    // 筛选出这段时间内有几个周末
$dt = Carbon::create(2014, 1, 1);
$dt2 = Carbon::create(2014, 12, 31);
$daysForExtraCoding = $dt->diffInDaysFiltered(function(Carbon $date) {
   return $date->isWeekend();
}, $dt2);
echo $daysForExtraCoding;      // 104
// 算一天分钟数为 0 的数量（可以自定义时间间隔）
$dt = Carbon::create(2014, 1, 1)->startOfDay();
$dt2 = $dt->copy()->endOfDay();
$littleHandRotations = $dt->diffFiltered(CarbonInterval::minute(), function(Carbon $date) {
   return $date->minute === 0;
}, $dt2);
echo $littleHandRotations;     // 24
// 其他的一些过滤函数
// others that are defined
// diffInYears(), diffInMonths(), diffInWeeks()
// diffInDays(), diffInWeekdays(), diffInWeekendDays()
// diffInHours(), diffInMinutes(), diffInSeconds()
// secondsSinceMidnight(), secondsUntilEndOfDay()
    • 常见的表达方法
    // The most typical usage is for comments
// The instance is the date the comment was created and its being compared to default now()
echo Carbon::now()->subDays(5)->diffForHumans();               // 5 days ago
echo Carbon::now()->diffForHumans(Carbon::now()->subYear());   // 1 year after
$dt = Carbon::createFromDate(2011, 8, 1);
echo $dt->diffForHumans($dt->copy()->addMonth());              // 1 month before
echo $dt->diffForHumans($dt->copy()->subMonth());              // 1 month after
echo Carbon::now()->addSeconds(5)->diffForHumans();            // 5 seconds from now
echo Carbon::now()->subDays(24)->diffForHumans();              // 3 weeks ago
echo Carbon::now()->subDays(24)->diffForHumans(null, true);    // 3 weeks
    • 天始，天末 月始，月末 年始，年末 一个十年始，十年末（2010-2020）
    $dt = Carbon::create(2012, 1, 31, 12, 0, 0);
echo $dt->startOfDay();                            // 2012-01-31 00:00:00
//
$dt = Carbon::create(2012, 1, 31, 12, 0, 0);
echo $dt->endOfDay();                              // 2012-01-31 23:59:59
//
$dt = Carbon::create(2012, 1, 31, 12, 0, 0);
echo $dt->startOfMonth();                          // 2012-01-01 00:00:00
//
$dt = Carbon::create(2012, 1, 31, 12, 0, 0);
echo $dt->endOfMonth();                            // 2012-01-31 23:59:59
//
$dt = Carbon::create(2012, 1, 31, 12, 0, 0);
echo $dt->startOfYear();                           // 2012-01-01 00:00:00
//
$dt = Carbon::create(2012, 1, 31, 12, 0, 0);
echo $dt->endOfYear();                             // 2012-12-31 23:59:59
//
$dt = Carbon::create(2012, 1, 31, 12, 0, 0);
echo $dt->startOfDecade();                         // 2010-01-01 00:00:00
//
$dt = Carbon::create(2012, 1, 31, 12, 0, 0);
echo $dt->endOfDecade();                           // 2019-12-31 23:59:59
//
$dt = Carbon::create(2012, 1, 31, 12, 0, 0);
echo $dt->startOfCentury();                        // 2000-01-01 00:00:00
//
$dt = Carbon::create(2012, 1, 31, 12, 0, 0);
echo $dt->endOfCentury();                          // 2099-12-31 23:59:59
//
$dt = Carbon::create(2012, 1, 31, 12, 0, 0);
echo $dt->startOfWeek();                           // 2012-01-30 00:00:00
var_dump($dt->dayOfWeek == Carbon::MONDAY);        // bool(true) : ISO8601 week starts on Monday
//
$dt = Carbon::create(2012, 1, 31, 12, 0, 0);
echo $dt->endOfWeek();                             // 2012-02-05 23:59:59
var_dump($dt->dayOfWeek == Carbon::SUNDAY);        // bool(true) : ISO8601 week ends on Sunday
//
$dt = Carbon::create(2012, 1, 31, 12, 0, 0);
echo $dt->next(Carbon::WEDNESDAY);                 // 2012-02-01 00:00:00
var_dump($dt->dayOfWeek == Carbon::WEDNESDAY);     // bool(true)
//
$dt = Carbon::create(2012, 1, 1, 12, 0, 0);
echo $dt->next();                                  // 2012-01-08 00:00:00
//
$dt = Carbon::create(2012, 1, 31, 12, 0, 0);
echo $dt->previous(Carbon::WEDNESDAY);             // 2012-01-25 00:00:00
var_dump($dt->dayOfWeek == Carbon::WEDNESDAY);     // bool(true)
//
$dt = Carbon::create(2012, 1, 1, 12, 0, 0);
echo $dt->previous();                              // 2011-12-25 00:00:00
// average
$start = Carbon::create(2014, 1, 1, 0, 0, 0);
$end = Carbon::create(2014, 1, 30, 0, 0, 0);
echo $start->average($end);                        // 2014-01-15 12:00:00
// 其他的函数
// others that are defined that are similar
//   firstOfMonth(), lastOfMonth(), nthOfMonth()
//   firstOfQuarter(), lastOfQuarter(), nthOfQuarter()
//   firstOfYear(), lastOfYear(), nthOfYear()
    • 时间间隔 （可以在时间过滤处使用）
    // 很好懂不解释了
echo CarbonInterval::year();                           // 1 year
echo CarbonInterval::months(3);                        // 3 months
echo CarbonInterval::days(3)->seconds(32);             // 3 days 32 seconds
echo CarbonInterval::weeks(3);                         // 3 weeks
echo CarbonInterval::days(23);                         // 3 weeks 2 days
echo CarbonInterval::create(2, 0, 5, 1, 1, 2, 7);      // 2 years 5 weeks 1 day 1 hour 2 minutes 7 seconds

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