Carbon中文使用手册
- 篇幅较长 建议先码后看~~~~
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Introduction
Carbon 继承了PHP的 Datetime 类和JsonSerialiable。所以 Carbon 中没有涉及到的,但在 Datetime 和JsonSerializable中已经实现的方法都是可以使用的。
1 class Carbon extends DateTime implements JsonSerializable 2 { 3 //code here 4 }
Carbon 类声明在 Carbon 命名空间下,可以通过引入命名空间的方式来代替每次输入完整的类名。
1 <?php 2 use Carbon\Carbon;
要特别留意是否使用了正确的时区,比如的所有差异比较都使用或者系统设定的时区
1 $dtToronto = Carbon::create(2012, 1, 1, 0, 0, 0, \'America/Toronto\'); 2 $dtVancouver = Carbon::create(2012, 1, 1, 0, 0, 0, \'America/Vancouver\'); 3 4 echo $dtVancouver->diffInHours($dtToronto); // 3
以上进行的时间比较是在提供的 Carbon 实例所在的时区下完成的。例如作者所在的时区为 东京时间减13 小时,因此在下午一点后。Carbon::now(‘Asia/Tokyo’)->isToday() 将会返回 false ,如果在调用 now() 时设置时区为东京时区,接下来的操作都使用东京时区是说不过去的。所以在与 now() 创建的实例进行比较时,默认是在当前时区下完成的。
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Instantiation
有几种不同的方法可以创建一个新的Carbon实例。首先是构造函数。它覆盖父构造函数,您最好阅读PHP手册中的第一个参数,并了解它所接受的日期/时间字符串格式。您可能会发现自己很少使用构造函数,而是依赖于显式静态方法来提高可读性
1 $carbon = new Carbon(); // 等同于 Carbon::now() 2 $carbon = new Carbon(\'first day of January 2008\', \'America/Vancouver\'); 3 echo get_class($carbon); // \'Carbon\Carbon\' 4 $carbon = Carbon::now(-5);//1表示英国伦敦,2表示法国巴黎
您将在上面注意到,timezone(2nd)参数是作为字符串和整数而不是\DateTimeZone实例传递的。所有DateTimeZone参数都已被增强,因此您可以将一个DateTimeZone实例、字符串或整型偏移量传递给GMT,并为您创建时区。在下一个示例中再次显示了这一点,该示例还介绍了now()函数。
$nowInLondonTz = Carbon::now(new \DateTimeZone(\'Europe/London\')); // 或者以字符串形式只传时区 $nowInLondonTz = Carbon::now(\'Europe/London\'); // 或者在DST期间创建一个时区为+1到GMT的日期,然后传递一个整数 echo Carbon::now(1)->tzName; // Europe/London
如果您真的喜欢您的动态方法调用,并且对使用构造函数时所需的额外的行或难看的括号感到失望,那么您将喜欢parse方法。
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
NOTE:在PHP 5.4 之前(new MyClass())->method() 会报语法错误, 如果你使用PHP 5.3, 你需要创建一个变量然后再调用方法:
$date = new Carbon(\'first day of December 2008\'); echo $date->addWeeks(2);
传递给Carbon:::parse或new Carbon的字符串可以表示相对时间(next sunday, tomorrow, first day of next month, last year)或绝对时间(first day of December 2008, 2017-01-06)。您可以用Carbon::hasRelativeKeywords()测试一个字符串是否会产生一个相对或绝对日期。
$string = \'first day of next month\'; if (strtotime($string) === false) { echo "\'$string\' is not a valid date/time string."; } elseif (Carbon::hasRelativeKeywords($string)) { echo "\'$string\' is a relative valid date/time string, it will returns different dates depending on the current date."; } else { echo "\'$string\' is an absolute date/time string, it will always returns the same date."; }
为了配合now(),还存在一些静态的实例化助手来创建广为人知的实例。这里唯一需要注意的是,today()、tomorrow()和yesterday()除了按照预期的行为,都接受一个时区参数,每个参数的时间值都设置为00:00:00。
$now = Carbon::now(); echo $now; // 2018-07-26 16:25:49 $today = Carbon::today(); echo $today; // 2018-07-26 00:00:00 $tomorrow = Carbon::tomorrow(\'Europe/London\'); echo $tomorrow; // 2018-07-27 00:00:00 $yesterday = Carbon::yesterday(); echo $yesterday; // 2018-07-25 00:00:00
下一组静态助手是createXXX() 函数。大多数静态create函数允许您提供许多个或少量的参数,并为所有其他参数提供默认值。通常默认值是当前日期、时间或时区。更高的值将适当地包装,但无效的值将抛出一个InvalidArgumentException,并附带一条信息。错误消息从DateTime:::getLastErrors()调用中获取。
Carbon::createFromDate($year, $month, $day, $tz); Carbon::createFromTime($hour, $minute, $second, $tz); Carbon::createFromTimeString("$hour:$minute:$second", $tz); Carbon::create($year, $month, $day, $hour, $minute, $second, $tz);
createFromDate() 的默认值是当前时间. createFromTime() 默认值是今天. create()如果不传参数也是当前时间. 与前面一样,$tz默认设置为当前时区,否则可以是DateTimeZone实例,也可以是字符串时区值。默认值(模拟底层PHP库)的唯一特殊情况发生在指定了小时值但没有分钟或秒时,它们将默认为0。
注:createFromTime() will default the date to today。小编经实战代码打印出来发现createFromTime() 的默认值也是当前时间,不是今天(时分秒并不是00:00:00)。
$xmasThisYear = Carbon::createFromDate(null, 12, 25); // Year默认值是今年 $Y2K = Carbon::create(2000, 1, 1, 0, 0, 0); // 等价于Carbon::createMidnightDate(2000, 1, 1) $alsoY2K = Carbon::create(1999, 12, 31, 24); $noonLondonTz = Carbon::createFromTime(12, 0, 0, \'Europe/London\'); $teaTime = Carbon::createFromTimeString(\'17:00:00\', \'Europe/London\'); // A two digit minute could not be found try { Carbon::create(1975, 5, 21, 22, -2, 0); } catch(\InvalidArgumentException $x) { echo $x->getMessage()
创建异常发生在使用负值上,而不是在溢出上,要获取溢出上的异常,请使用createSafe()
echo Carbon::create(2000, 1, 35, 13, 0, 0);// 2000-02-04 13:00:00 //(1月有31天,4天自动加上去转换成了2月4号) try { Carbon::createSafe(2000, 1, 35, 13, 0, 0); } catch (\Carbon\Exceptions\InvalidDateException $exp) { echo $exp->getMessage(); } // 会报错:day : 35 is not a valid value.
NOTE1:2018-02-29会产生一个异常,而2020-02-29不会产生异常,因为2020年是闰年。
NOTE2:Carbon::createSafe(2014,3,30,1,30,0,\’Europe/London\’);从PHP 5.4开始也会产生一个异常,因为在夏令时跳过一个小时,但是在PHP 5.4之前,它只会创建这个无效的日期。
Carbon::createFromFormat($format, $time, $tz);
createFromFormat()是最基本的php函数DateTime:::createFromFormat的包装器。不同的是,$tz参数可以是DateTimeZone实例或字符串时区值。此外,如果格式有错误,这个函数将调用DateTime::getLastErrors()方法,然后抛出一个InvalidArgumentException,错误作为消息。如果您查看上面的createXX()函数的源代码,它们都会调用createFromFormat()。
echo Carbon::createFromFormat(\'Y-m-d H\', \'1975-05-21 22\')->toDateTimeString(); // 1975-05-21 22:00:00
最后三个create函数用于使用unix时间戳。第一个将创建一个与给定的时间戳相等的Carbon实例,并将设置时区或默认为当前时区。第二个createFromTimestampUTC()是不同的,因为时区将保持UTC(GMT)。第二种方法与Carbon: createFromFormat(\’@\’.$timestamp)的作用相同,但我只是让它更明确了一点。第三个是createFromTimestampMs(),它接受以毫秒而不是秒为单位的时间戳。也允许使用负时间戳。
echo Carbon::createFromTimestamp(-1)->toDateTimeString(); // 1969-12-31 18:59:59 echo Carbon::createFromTimestamp(-1, \'Europe/London\')->toDateTimeString(); // 1970-01-01 00:59:59 echo Carbon::createFromTimestampUTC(-1)->toDateTimeString(); // 1969-12-31 23:59:59 echo Carbon::createFromTimestampMs(1)->format(\'Y-m-d\TH:i:s.uP T\'); // 1969-12-31T19:00:00.001000-05:00 EST echo Carbon::createFromTimestampMs(1, \'Europe/London\')->format(\'Y-m-d\TH:i:s.uP T\'); // 1970-01-01T01:00:00.001000+01:00 BST
您还可以copy()在现有Carbon实例上创建。如预期的那样,日期、时间和时区值都被复制到新实例。
$dt = Carbon::now(); echo $dt->diffInYears($dt->copy()->addYear()); // 1 // $dt 实例没有改变,任然是Carbon:now()
您可以在现有的Carbon实例上使用nowWithSameTz()来在相同的时区中获取一个新的实例。
$meeting = Carbon::createFromTime(19, 15, 00, \'Africa/Johannesburg\'); // 19:15 in Johannesburg echo \'Meeting starts at \'.$meeting->format(\'H:i\').\' in Johannesburg.\'; // Meeting starts at 19:15 in Johannesburg. // now in Johannesburg echo "It\'s ".$meeting->nowWithSameTz()->format(\'H:i\').\' right now in Johannesburg.\'; // It\'s 09:37 right now in Johannesburg.
最后,如果您发现自己从另一个库继承了\DateTime实例,不要害怕!您可以通过友好的instance()方法创建一个Carbon实例。或者使用更灵活的方法make(),它可以从DateTime、Carbon或string返回一个新的Carbon实例,否则它只返回null。
$dt = new \DateTime(\'first day of January 2008\'); // <== instance from another API $carbon = Carbon::instance($dt); echo get_class($carbon); // \'Carbon\Carbon\' echo $carbon->toDateTimeString(); // 2008-01-01 00:00:00
关于微秒的简要说明。PHP DateTime对象允许您设置一个微秒值,但是忽略它的所有日期数学。现在,1.12.0的Carbon在实例化或复制操作过程中支持微秒,并在默认情况下使用format()方法。
$dt = Carbon::parse(\'1975-05-21 22:23:00.123456\'); echo $dt->micro; // 123456 echo $dt->copy()->micro; // 123456
在PHP 7.1之前 DateTime微秒未添加到“now”实例,并且之后不能更改,这意味着:
$date = new DateTime(\'now\'); echo $date->format(\'u\'); // display current microtime in PHP >= 7.1 (expect a bug in PHP 7.1.3 only) // display 000000 before PHP 7.1 $date = new DateTime(\'2001-01-01T00:00:00.123456Z\'); echo $date->format(\'u\'); // display 123456 in all PHP versions $date->modify(\'00:00:00.987654\'); echo $date->format(\'u\'); // display 987654 in PHP >= 7.1 // display 123456 before PHP 7.1
为了解决这个限制,我们在PHP < 7.1中调用了microseconds,但是这个特性在需要时可以被禁用(PHP >= 7.1):
Carbon::useMicrosecondsFallback(false); var_dump(Carbon::isMicrosecondsFallbackEnabled()); // false echo Carbon::now()->micro; // 0 in PHP < 7.1, microtime in PHP >= 7.1 Carbon::useMicrosecondsFallback(true); // default value var_dump(Carbon::isMicrosecondsFallbackEnabled()); // true echo Carbon::now()->micro; // microtime in all PHP version
是否需要遍历一些日期以找到最早或最近的日期?不知道如何设置初始最大值/最小值?现在有两个助手可以帮助你做出简单的决定:
echo Carbon::maxValue(); // \'9999-12-31 23:59:59\' echo Carbon::minValue(); // \'0001-01-01 00:00:00\'
最小和最大值主要取决于系统(32位或64位)。
使用32位OS系统或32位版本的PHP(您可以在PHP中使用PHP_INT_SIZE == 4来检查它),最小值是0-unix-timestamp(1970-01-01 00:00:00),最大值是常量PHP_INT_MAX给出的时间戳。
使用64位OS系统和64位PHP版本,最小值为01-01 00:00,最大值为9999-12-31 23:59:59。
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Localization
不幸的是,基类DateTime没有任何本地化支持。为了开始本地化支持,还添加了一个formatLocalized($format)方法。实现使用当前实例时间戳对strftime进行调用。如果您首先使用PHP函数setlocale()设置当前的语言环境,那么返回的字符串将被格式化为正确的语言环境。
$newLocale = setlocale(LC_TIME, \'German\'); if ($newLocale === false) { echo \'"German" locale is not installed on your machine, it may have a different name a different name on your machine or you may need to install it.\'; } echo $dt->formatLocalized(\'%A %d %B %Y\'); // Mittwoch 21 Mai 1975 setlocale(LC_TIME, \'English\'); echo $dt->formatLocalized(\'%A %d %B %Y\'); // Wednesday 21 May 1975 setlocale(LC_TIME, \'\'); // reset locale
diffForHumans()也被定位。您可以通过使用静态Carbon::setLocale()函数来设置Carbon locale(),并使用Carbon::getLocale()获取当前的设置。
Carbon::setLocale(\'de\'); echo Carbon::getLocale(); // de echo Carbon::now()->addYear()->diffForHumans(); // in 1 Jahr Carbon::setLocale(\'en\'); echo Carbon::getLocale(); // en
或者,您可以将一些代码与给定的语言环境隔离:
Carbon::executeWithLocale(\'de\', function ($newLocale) { // You can optionally get $newLocale as the first argument of the closure // It will be set to the new locale or false if the locale was not found. echo Carbon::now()->addYear()->diffForHumans(); }); // in 1 Jahr // outside the function the locale did not change echo Carbon::getLocale(); // en // or same using a return statement $french = Carbon::executeWithLocale(\'fr\', function () { return Carbon::now()->addYear()->diffForHumans(); }); echo $french; // dans 1 an
有些语言需要打印utf8编码(主要以. utf8结尾的语言环境包)。在本例中,您可以使用静态方法Carbon::setUtf8()对对utf8字符集的formatlocalized()调用的结果进行编码。
setlocale(LC_TIME, \'Spanish\'); $dt = Carbon::create(2016, 01, 06, 00, 00, 00); Carbon::setUtf8(false); echo $dt->formatLocalized(\'%A %d %B %Y\'); // mi�rcoles 06 enero 2016 Carbon::setUtf8(true); echo $dt->formatLocalized(\'%A %d %B %Y\'); // miércoles 06 enero 2016 Carbon::setUtf8(false); setlocale(LC_TIME, \'\');
在Linux上
如果您在翻译方面有问题,请检查系统中安装的地区(本地和生产)。
区域设置-列出已启用的区域设置。
sudo locale-gen fr_FR。UTF-8安装一个新的语言环境。
sudo dpkg-reconfigure locale来发布所有启用的locale。
并重启系统。
您可以通过以下方式自定义现有语言:
Carbon::setLocale(\'en\'); $translator = Carbon::getTranslator(); $translator->setMessages(\'en\', array( \'day\' => \':count boring day|:count boring days\', )); $date1 = Carbon::create(2018, 1, 1, 0, 0, 0); $date2 = Carbon::create(2018, 1, 4, 4, 0, 0); echo $date1->diffForHumans($date2, true, false, 2); // 3 boring days 4 hours $translator->resetMessages(\'en\'); // reset language customizations for en language
请注意,您还可以使用另一个转换器Carbon::setTranslator($custom),只要给定的转换器继承了Symfony\Component\Translation\TranslatorInterface。 因此,对格式本地化、getter(如localeMonth、localedayayofweek和短变体)的语言环境支持是由安装在操作系统中的语言环境驱动的。对于其他翻译,由于碳社区的支持,它在内部得到了支持。您可以使用以下方法检查支持的内容:
echo implode(\', \', array_slice(Carbon::getAvailableLocales(), 0, 3)).\'...\'; // af, ar, ar_Shakl... // Support diff syntax (before, after, from now, ago) var_dump(Carbon::localeHasDiffSyntax(\'en\')); // bool(true) var_dump(Carbon::localeHasDiffSyntax(\'zh_TW\')); // bool(true) // Support 1-day diff words (just now, yesterday, tomorrow) var_dump(Carbon::localeHasDiffOneDayWords(\'en\')); // bool(true) var_dump(Carbon::localeHasDiffOneDayWords(\'zh_TW\')); // bool(false) // Support 2-days diff words (before yesterday, after tomorrow) var_dump(Carbon::localeHasDiffTwoDayWords(\'en\')); // bool(true) var_dump(Carbon::localeHasDiffTwoDayWords(\'zh_TW\')); // bool(false) // Support short units (1y = 1 year, 1mo = 1 month, etc.) var_dump(Carbon::localeHasShortUnits(\'en\')); // bool(true) var_dump(Carbon::localeHasShortUnits(\'zh_TW\')); // bool(false) // Support period syntax (X times, every X, from X, to X) var_dump(Carbon::localeHasPeriodSyntax(\'en\')); // bool(true) var_dump(Carbon::localeHasPeriodSyntax(\'zh_TW\')); // bool(false)
以下是最后一个碳版本支持的73个地区的概述:
注意,如果您使用Laravel 5.5+,语言环境将根据当前的最后一个App:setLocale execution自动设置。所以扩散人类将是透明的。您可能仍然需要在某些中间件中运行setlocale以使formatlocalizedworking正确。
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Testing Aids
测试方法允许您在创建“现在”实例时设置要返回的Carbon实例(real或mock)。所提供的实例将在以下条件下具体返回:
对static now()方法的调用,例如:Carbon::now()
当一个空(或空字符串)被传递给构造函数或parse()时,ex.new Carbon(空)
当字符串“now”传递给构造函数或parse()时,ex. new Carbon(\’now\’)
给定的实例也将作为diff方法的默认相对时间。
$knownDate = Carbon::create(2001, 5, 21, 12); // create testing date Carbon::setTestNow($knownDate); // set the mock (of course this could be a real mock object) echo Carbon::getTestNow(); // 2001-05-21 12:00:00 echo Carbon::now(); // 2001-05-21 12:00:00 echo new Carbon(); // 2001-05-21 12:00:00 echo Carbon::parse(); // 2001-05-21 12:00:00 echo new Carbon(\'now\'); // 2001-05-21 12:00:00 echo Carbon::parse(\'now\'); // 2001-05-21 12:00:00 echo Carbon::create(2001, 4, 21, 12)->diffForHumans(); // 1 month ago var_dump(Carbon::hasTestNow()); // bool(true) Carbon::setTestNow(); // clear the mock var_dump(Carbon::hasTestNow()); // bool(false) echo Carbon::now(); // 2018-07-05 03:37:12
一个更有意义的完整例子:
class SeasonalProduct { protected $price; public function __construct($price) { $this->price = $price; } public function getPrice() { $multiplier = 1; if (Carbon::now()->month == 12) { $multiplier = 2; } return $this->price * $multiplier; } } $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();
根据给定的“now”实例,还可以对相关短语进行嘲笑。
$knownDate = Carbon::create(2001, 5, 21, 12); // create testing date Carbon::setTestNow($knownDate); // set the mock 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 Carbon::setTestNow(); // always clear it !
被认为是相对修饰语的单词列表如下:
- +
- –
- ago
- first
- next
- last
- this
- today
- tomorrow
- yesterday
请注意,与next()、previous()和modify()方法类似,这些相对修饰符中的一些将把时间设置为00:00。
Carbon: parse($time, $tz)和new Carbon($time, $tz)都可以将时区作为第二个参数。
echo Carbon::parse(\'2012-9-5 23:26:11.223\', \'Europe/Paris\')->timezone->getName(); // Europe/Paris
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Getters
getter方法是通过PHP的__get()方法实现的。这使您能够像访问属性而不是函数调用那样访问值。
$dt = Carbon::parse(\'2012-10-5 23:26:11.123789\'); // 这些getter方法都将返回int类型 var_dump($dt->year); // int(2012) var_dump($dt->month); // int(10) var_dump($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) // dayOfWeek 返回一个数值 0 (sunday) 到 6 (saturday) var_dump($dt->dayOfWeek); // int(5) // dayOfWeekIso 返回一个数值 1 (monday) 到 7 (sunday) var_dump($dt->dayOfWeekIso); // int(5) setlocale(LC_TIME, \'German\'); var_dump($dt->englishDayOfWeek); // string(6) "Friday" var_dump($dt->shortEnglishDayOfWeek); // string(3) "Fri" var_dump($dt->localeDayOfWeek); // string(7) "Freitag" var_dump($dt->shortLocaleDayOfWeek); // string(2) "Fr" var_dump($dt->englishMonth); // string(7) "October" var_dump($dt->shortEnglishMonth); // string(3) "Oct" var_dump($dt->localeMonth); // string(7) "Oktober" var_dump($dt->shortLocaleMonth); // string(3) "Okt" setlocale(LC_TIME, \'\'); var_dump($dt->dayOfYear); // int(278) var_dump($dt->weekNumberInMonth); // weekNumberInMonth consider weeks from monday to sunday, so the week 1 will // contain 1 day if the month start with a sunday, and up to 7 if it starts with a monday var_dump($dt->weekOfMonth); // int(1) // weekOfMonth will returns 1 for the 7 first days of the month, then 2 from the 8th to // the 14th, 3 from the 15th to the 21st, 4 from 22nd to 28th and 5 above var_dump($dt->weekOfYear); // int(40) var_dump($dt->daysInMonth); // int(31) var_dump($dt->timestamp); // int(1349493971) var_dump(Carbon::createFromDate(1975, 5, 21)->age); // int(43) calculated vs now in the same tz var_dump($dt->quarter); // int(4) // 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
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Setters
下面的setter是通过PHP的__set()方法实现的。值得注意的是,除了显式地设置时区之外,任何设置程序都不会更改实例的时区。具体地说,设置时间戳不会将相应的时区设置为UTC。
$dt = Carbon::now(); $dt->year = 1975; $dt->month = 13; //强制 year++ 然后 month = 1 $dt->month = 5; $dt->day = 21; $dt->hour = 22; $dt->minute = 32; $dt->second = 5; $dt->timestamp = 169957925; // 这不会改变时区 // 通过DateTimeZone实例或字符串设置时区 $dt->timezone = new DateTimeZone(\'Europe/London\'); $dt->timezone = \'Europe/London\'; $dt->tz = \'Europe/London\';
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Fluent Setters
对于setter没有可选参数,但是函数定义中有足够的多样性,因此无论如何都不需要它们。值得注意的是,除了显式地设置时区之外,任何设置程序都不会更改实例的时区。具体地说,设置时间戳不会将相应的时区设置为UTC。
$dt = Carbon::now(); $dt->year(1975)->month(5)->day(21)->hour(22)->minute(32)->second(5)->toDateTimeString(); $dt->setDate(1975, 5, 21)->setTime(22, 32, 5)->toDateTimeString(); $dt->setDate(1975, 5, 21)->setTimeFromTimeString(\'22:32:05\')->toDateTimeString(); $dt->setDateTime(1975, 5, 21, 22, 32, 5)->toDateTimeString(); $dt->timestamp(169957925)->timezone(\'Europe/London\'); $dt->tz(\'America/Toronto\')->setTimezone(\'America/Vancouver\');
您还可以将日期和时间与其他DateTime/Carbon对象分开设置:
$source1 = new Carbon(\'2010-05-16 22:40:10\'); $dt = new Carbon(\'2001-01-01 01:01:01\'); $dt->setTimeFrom($source1); echo $dt; // 2001-01-01 22:40:10 $source2 = new DateTime(\'2013-09-01 09:22:56\'); $dt->setDateFrom($source2); echo $dt; // 2013-09-01 22:40:10
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IsSet
实现了PHP函数__isset()。这是在一些外部系统(例如Twig)在使用属性之前验证属性的存在时完成的。这是使用isset()或empty()方法完成的。在PHP站点:__isset()、isset()、empty()上,您可以阅读更多关于这些内容的信息。
var_dump(isset(Carbon::now()->iDoNotExist)); // bool(false) var_dump(isset(Carbon::now()->hour)); // bool(true) var_dump(empty(Carbon::now()->iDoNotExist)); // bool(true) var_dump(empty(Carbon::now()->year)); // bool(false)
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String Formatting
所有可用的toXXXString()方法都依赖于基类方法DateTime: format()。您将注意到__toString()方法的定义,它允许在字符串上下文中使用时将一个Carbon实例打印为一个漂亮的日期时间字符串。
$dt = Carbon::create(1975, 12, 25, 14, 15, 16); var_dump($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 $dt->format(\'l jS \\of F Y h:i:s A\'); // Thursday 25th of December 1975 02:15:16 PM // The reverse hasFormat method allows you to test if a string looks like a given format var_dump($dt->hasFormat(\'Thursday 25th December 1975 02:15:16 PM\', \'l jS F Y h:i:s A\')); // bool(true)
您还可以设置默认的__toString()格式(默认为Y-m-d H:i:s),这是在发生类型杂耍时使用的格式。
Carbon::setToStringFormat(\'jS \o\f F, Y g:i:s a\'); echo $dt; // 25th of December, 1975 2:15:16 pm Carbon::resetToStringFormat(); echo $dt; // 1975-12-25 14:15:16
NOTE:对于本地化支持,请参阅本地化部分。
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Common Formats
下面是DateTime类中提供的公共格式的包装器。
$dt = Carbon::createFromFormat(\'Y-m-d H:i:s.u\', \'2019-02-01 03:45:27.612584\'); // $dt->toAtomString() is the same as $dt->format(DateTime::ATOM); echo $dt->toAtomString(); // 2019-02-01T03:45:27-05:00 echo $dt->toCookieString(); // Friday, 01-Feb-2019 03:45:27 EST echo $dt->toIso8601String(); // 2019-02-01T03:45:27-05:00 // Be aware we chose to use the full-extended format of the ISO 8601 norm // Natively, DateTime::ISO8601 format is not compatible with ISO-8601 as it // is explained here in the PHP documentation: // https://php.net/manual/class.datetime.php#datetime.constants.iso8601 // We consider it as a PHP mistake and chose not to provide method for this // format, but you still can use it this way: echo $dt->format(DateTime::ISO8601); // 2019-02-01T03:45:27-0500 echo $dt->toIso8601ZuluString(); // 2019-02-01T08:45:27Z echo $dt->toRfc822String(); // Fri, 01 Feb 19 03:45:27 -0500 echo $dt->toRfc850String(); // Friday, 01-Feb-19 03:45:27 EST echo $dt->toRfc1036String(); // Fri, 01 Feb 19 03:45:27 -0500 echo $dt->toRfc1123String(); // Fri, 01 Feb 2019 03:45:27 -0500 echo $dt->toRfc2822String(); // Fri, 01 Feb 2019 03:45:27 -0500 echo $dt->toRfc3339String(); // 2019-02-01T03:45:27-05:00 echo $dt->toRfc7231String(); // Fri, 01 Feb 2019 08:45:27 GMT echo $dt->toRssString(); // Fri, 01 Feb 2019 03:45:27 -0500 echo $dt->toW3cString(); // 2019-02-01T03:45:27-05:00 var_dump($dt->toArray()); /* array(12) { ["year"]=> int(2019) ["month"]=> int(2) ["day"]=> int(1) ["dayOfWeek"]=> int(5) ["dayOfYear"]=> int(31) ["hour"]=> int(3) ["minute"]=> int(45) ["second"]=> int(27) ["micro"]=> int(612584) ["timestamp"]=> int(1549010727) ["formatted"]=> string(19) "2019-02-01 03:45:27" ["timezone"]=> object(DateTimeZone)#118 (2) { ["timezone_type"]=> int(3) ["timezone"]=> string(15) "America/Toronto" } } */
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Comparison
通过以下函数提供了简单的比较。请记住,比较是在UTC时区进行的,所以事情并不总是像看上去的那样。
echo Carbon::now()->tzName; // America/Toronto $first = Carbon::create(2012, 9, 5, 23, 26, 11); $second = Carbon::create(2012, 9, 5, 20, 26, 11, \'America/Vancouver\'); echo $first->toDateTimeString(); // 2012-09-05 23:26:11 echo $first->tzName; // America/Toronto echo $second->toDateTimeString(); // 2012-09-05 20:26:11 echo $second->tzName; // America/Vancouver var_dump($first->eq($second)); // bool(true) var_dump($first->ne($second)); // bool(false) var_dump($first->gt($second)); // bool(false) var_dump($first->gte($second)); // bool(true) var_dump($first->lt($second)); // bool(false) var_dump($first->lte($second)); // bool(true) $first->setDateTime(2012, 1, 1, 0, 0, 0); $second->setDateTime(2012, 1, 1, 0, 0, 0); // Remember tz is \'America/Vancouver\' var_dump($first->eq($second)); // bool(false) var_dump($first->ne($second)); // bool(true) var_dump($first->gt($second)); // bool(false) var_dump($first->gte($second)); // bool(false) var_dump($first->lt($second)); // bool(true) var_dump($first->lte($second)); // bool(true) // All have verbose aliases and PHP equivalent code: var_dump($first->eq($second)); // bool(false) var_dump($first->equalTo($second)); // bool(false) var_dump($first == $second); // bool(false) var_dump($first->ne($second)); // bool(true) var_dump($first->notEqualTo($second)); // bool(true) var_dump($first != $second); // bool(true) var_dump($first->gt($second)); // bool(false) var_dump($first->greaterThan($second)); // bool(false) var_dump($first > $second); // bool(false) var_dump($first->gte($second)); // bool(false) var_dump($first->greaterThanOrEqualTo($second)); // bool(false) var_dump($first >= $second); // bool(false) var_dump($first->lt($second)); // bool(true) var_dump($first->lessThan($second)); // bool(true) var_dump($first < $second); // bool(true) var_dump($first->lte($second)); // bool(true) var_dump($first->lessThanOrEqualTo($second)); // bool(true) var_dump($first <= $second); // bool(true)
这些方法使用PHP $date1 == $date2提供的自然比较,因此在PHP 7.1之前,所有方法都将忽略milli/micro-seconds,然后从7.1开始考虑它们。
要确定当前实例是否在其他两个实例之间,可以使用恰当命名的between()方法。第三个参数表示是否应该进行相等的比较。默认值是true,它决定了它的中间值还是等于边界。
$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)
哇!你忘记了min()和max()了吗?不。这也被适当命名的min()和max()方法或minimum()和maximum()别名所覆盖。与往常一样,如果指定为null,则默认参数现在为。
$dt1 = Carbon::createMidnightDate(2012, 1, 1); $dt2 = Carbon::createMidnightDate(2014, 1, 30); echo $dt1->min($dt2); // 2012-01-01 00:00:00 echo $dt1->minimum($dt2); // 2012-01-01 00:00:00 $dt1 = Carbon::createMidnightDate(2012, 1, 1); $dt2 = Carbon::createMidnightDate(2014, 1, 30); echo $dt1->max($dt2); // 2014-01-30 00:00:00 echo $dt1->maximum($dt2); // 2014-01-30 00:00:00 // now is the default param $dt1 = Carbon::createMidnightDate(2000, 1, 1); echo $dt1->max(); // 2018-07-05 03:37:12 echo $dt1->maximum(); // 2018-07-05 03:37:12 $dt1 = Carbon::createMidnightDate(2010, 4, 1); $dt2 = Carbon::createMidnightDate(2010, 3, 28); $dt3 = Carbon::createMidnightDate(2010, 4, 16); // returns the closest of two date (no matter before or after) echo $dt1->closest($dt2, $dt3); // 2010-03-28 00:00:00 echo $dt2->closest($dt1, $dt3); // 2010-04-01 00:00:00 echo $dt3->closest($dt2, $dt1); // 2010-04-01 00:00:00 // returns the farthest of two date (no matter before or after) echo $dt1->farthest($dt2, $dt3); // 2010-04-16 00:00:00 echo $dt2->farthest($dt1, $dt3); // 2010-04-16 00:00:00 echo $dt3->farthest($dt2, $dt1); // 2010-03-28 00:00:00
为了处理最常用的情况,这里有一些简单的帮助函数,希望它们的名称能很明显地反映出来。对于以某种方式与now() (ex.istoday()))进行比较的方法,now()是在与实例相同的时区创建的。
$dt = Carbon::now(); $dt2 = Carbon::createFromDate(1987, 4, 23); $dt->isSameAs(\'w\', $dt2); // w is the date of the week, so this will return true if $dt and $dt2 // the same day of week (both monday or both sunday, etc.) // you can use any format and combine as much as you want. $dt->isFuture(); $dt->isPast(); $dt->isSameYear($dt2); $dt->isCurrentYear(); $dt->isNextYear(); $dt->isLastYear(); $dt->isLongYear(); // see https://en.wikipedia.org/wiki/ISO_8601#Week_dates $dt->isLeapYear(); $dt->isSameQuarter($dt2); // same quarter (3 months) no matter the year of the given date $dt->isSameQuarter($dt2, true); // same quarter of the same year of the given date /* Alternatively, you can run Carbon::compareYearWithMonth() to compare both quarter and year by default, In this case you can use $dt->isSameQuarter($dt2, false) to compare ignoring the year Run Carbon::compareYearWithMonth(false) to reset to the default behavior Run Carbon::shouldCompareYearWithMonth() to get the current setting */ $dt->isCurrentQuarter(); $dt->isNextQuarter(); // date is in the next quarter $dt->isLastQuarter(); // in previous quarter $dt->isSameMonth($dt2); // same month no matter the year of the given date $dt->isSameMonth($dt2, true); // same month of the same year of the given date /* As for isSameQuarter, you can run Carbon::compareYearWithMonth() to compare both month and year by default, In this case you can use $dt->isSameMonth($dt2, false) to compare ignoring the year Run Carbon::compareYearWithMonth(false) to reset to the default behavior Run Carbon::shouldCompareYearWithMonth() to get the current setting */ $dt->isCurrentMonth(); $dt->isNextMonth(); $dt->isLastMonth(); $dt->isWeekday(); $dt->isWeekend(); $dt->isMonday(); $dt->isTuesday(); $dt->isWednesday(); $dt->isThursday(); $dt->isFriday(); $dt->isSaturday(); $dt->isSunday(); $dt->isDayOfWeek(Carbon::SATURDAY); // is a saturday $dt->isLastOfMonth(); // is the last day of the month $dt->isSameDay($dt2); // Same day of same month of same year $dt->isCurrentDay(); $dt->isYesterday(); $dt->isToday(); $dt->isTomorrow(); $dt->isNextWeek(); $dt->isLastWeek(); $dt->isSameHour($dt2); $dt->isCurrentHour(); $dt->isSameMinute($dt2); $dt->isCurrentMinute(); $dt->isSameSecond($dt2); $dt->isCurrentSecond(); $dt->isStartOfDay(); // check if hour is 00:00:00 $dt->isMidnight(); // check if hour is 00:00:00 (isStartOfDay alias) $dt->isEndOfDay(); // check if hour is 23:59:59 $dt->isMidday(); // check if hour is 12:00:00 (or other midday hour set with Carbon::setMidDayAt()) $born = Carbon::createFromDate(1987, 4, 23); $noCake = Carbon::createFromDate(2014, 9, 26); $yesCake = Carbon::createFromDate(2014, 4, 23); $overTheHill = Carbon::now()->subYears(50); var_dump($born->isBirthday($noCake)); // bool(false) var_dump($born->isBirthday($yesCake)); // bool(true) var_dump($overTheHill->isBirthday()); // bool(true) -> default compare it to today!
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Addition and Subtraction
默认的DateTime提供了几种不同的方法来方便地添加和减少时间。有modify()、add()和sub()。modify()使用一个魔术date/time格式字符串“last day of next month”,它解析并应用修改,而add()和sub()则期望一个不那么明显的日期间隔实例(例如新的\日期间隔(\’P6YT5M\’)将意味着6年5分钟)。希望使用这些流畅的函数将会更加清晰,并且在几个星期内没有看到您的代码后更容易阅读。当然,我不会让您选择,因为基类函数仍然可用。
$dt = Carbon::create(2012, 1, 31, 0); echo $dt->toDateTimeString(); // 2012-01-31 00:00:00 echo $dt->addCenturies(5); // 2512-01-31 00:00:00 echo $dt->addCentury(); // 2612-01-31 00:00:00 echo $dt->subCentury(); // 2512-01-31 00:00:00 echo $dt->subCenturies(5); // 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->addQuarters(2); // 2012-07-31 00:00:00 echo $dt->addQuarter(); // 2012-10-31 00:00:00 echo $dt->subQuarter(); // 2012-07-31 00:00:00 echo $dt->subQuarters(2); // 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
为了好玩,您还可以将负值传递给addXXX(),实际上这就是subXXX()实现的方式。 附注:如果你忘记并使用addDay(5) 或subYear(3),我支持你; 默认情况下,Carbon依赖于底层父类PHP DateTime行为。因此,增加或减少月份可能会溢出,例如:
$dt = Carbon::create(2017, 1, 31, 0); echo $dt->copy()->addMonth(); // 2017-03-03 00:00:00 echo $dt->copy()->subMonths(2); // 2016-12-01 00:00:00
为了防止溢出Carbon:usemonthverflow (false)
Carbon::useMonthsOverflow(false); $dt = Carbon::createMidnightDate(2017, 1, 31); echo $dt->copy()->addMonth(); // 2017-02-28 00:00:00 echo $dt->copy()->subMonths(2); // 2016-11-30 00:00:00 // Call the method with true to allow overflow again Carbon::resetMonthsOverflow(); // same as Carbon::useMonthsOverflow(true);
方法Carbon:::shouldOverflowMonths()允许您知道当前是否启用了溢出。您也可以使用->addMonthsNoOverflow, ->subMonthsNoOverflow, ->addMonthsWithOverflow, -> submonth withoverflow(或单数方法,不含s至“month”),显式add/sub,无论当前模式如何,都可以添加或不添加溢出。
Carbon::useMonthsOverflow(false); $dt = Carbon::createMidnightDate(2017, 1, 31); echo $dt->copy()->addMonthWithOverflow(); // 2017-03-03 00:00:00 // plural addMonthsWithOverflow() method is also available echo $dt->copy()->subMonthsWithOverflow(2); // 2016-12-01 00:00:00 // singular subMonthWithOverflow() method is also available echo $dt->copy()->addMonthNoOverflow(); // 2017-02-28 00:00:00 // plural addMonthsNoOverflow() method is also available echo $dt->copy()->subMonthsNoOverflow(2); // 2016-11-30 00:00:00 // singular subMonthNoOverflow() method is also available echo $dt->copy()->addMonth(); // 2017-02-28 00:00:00 echo $dt->copy()->subMonths(2); // 2016-11-30 00:00:00 Carbon::useMonthsOverflow(true); $dt = Carbon::createMidnightDate(2017, 1, 31); echo $dt->copy()->addMonthWithOverflow(); // 2017-03-03 00:00:00 echo $dt->copy()->subMonthsWithOverflow(2); // 2016-12-01 00:00:00 echo $dt->copy()->addMonthNoOverflow(); // 2017-02-28 00:00:00 echo $dt->copy()->subMonthsNoOverflow(2); // 2016-11-30 00:00:00 echo $dt->copy()->addMonth(); // 2017-03-03 00:00:00 echo $dt->copy()->subMonths(2); // 2016-12-01 00:00:00 Carbon::resetMonthsOverflow();
从1.23.0版本开始,在以下年份也可以使用溢出控制:
Carbon::useYearsOverflow(false); $dt = Carbon::createMidnightDate(2020, 2, 29); var_dump(Carbon::shouldOverflowYears()); // bool(false) echo $dt->copy()->addYearWithOverflow(); // 2021-03-01 00:00:00 // plural addYearsWithOverflow() method is also available echo $dt->copy()->subYearsWithOverflow(2); // 2018-03-01 00:00:00 // singular subYearWithOverflow() method is also available echo $dt->copy()->addYearNoOverflow(); // 2021-02-28 00:00:00 // plural addYearsNoOverflow() method is also available echo $dt->copy()->subYearsNoOverflow(2); // 2018-02-28 00:00:00 // singular subYearNoOverflow() method is also available echo $dt->copy()->addYear(); // 2021-02-28 00:00:00 echo $dt->copy()->subYears(2); // 2018-02-28 00:00:00 Carbon::useYearsOverflow(true); $dt = Carbon::createMidnightDate(2020, 2, 29); var_dump(Carbon::shouldOverflowYears()); // bool(true) echo $dt->copy()->addYearWithOverflow(); // 2021-03-01 00:00:00 echo $dt->copy()->subYearsWithOverflow(2); // 2018-03-01 00:00:00 echo $dt->copy()->addYearNoOverflow(); // 2021-02-28 00:00:00 echo $dt->copy()->subYearsNoOverflow(2); // 2018-02-28 00:00:00 echo $dt->copy()->addYear(); // 2021-03-01 00:00:00 echo $dt->copy()->subYears(2); // 2018-03-01 00:00:00 Carbon::resetYearsOverflow();
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Difference
由于Carbon继承了DateTime,它继承了它的方法,如diff(),它将第二个date对象作为参数,并返回一个DateInterval实例。
我们还提供了diffAsCarbonInterval(),类似于diff(),但返回一个CarbonInterval实例。检查CarbonInterval 章节了解更多信息。每个单元的Carbon添加了diff方法,如diffInYears()、diffInMonths()等。diffAsCarbonInterval()和diffIn*()方法都可以使用两个可选参数:date to compare with(如果缺失,now是默认值),以及一个绝对布尔选项(默认为true),无论哪个日期大于另一个,该方法都返回一个绝对值。如果设置为false,则在调用方法的实例大于比较日期(第一个参数或now)时返回负值。注意,diff()原型是不同的:它的第一个参数(date)是强制性的,第二个参数(绝对选项)默认为false。
这些函数总是返回在指定的时间内表示的总差异。这与基类diff()函数不同,该函数的时间间隔为122秒,通过DateInterval实例返回2分零2秒。diffInMinutes()函数只返回2,而diffInSeconds()将返回122。所有的值都被截断而不是四舍五入。下面的每个函数都有一个默认的第一个参数,该参数是要比较的Carbon实例,如果您想使用now(),则为null。第二个参数也是可选的,如果您希望返回值是绝对值,或者如果传递的日期小于当前实例,则返回值可能具有-(负)符号的相对值。这将默认为true,返回绝对值。
echo Carbon::now(\'America/Vancouver\')->diffInSeconds(Carbon::now(\'Europe/London\')); // 0 $dtOttawa = Carbon::createMidnightDate(2000, 1, 1, \'America/Toronto\'); $dtVancouver = Carbon::createMidnightDate(2000, 1, 1, \'America/Vancouver\'); echo $dtOttawa->diffInHours($dtVancouver); // 3 echo $dtVancouver->diffInHours($dtOttawa); // 3 echo $dtOttawa->diffInHours($dtVancouver, false); // 3 echo $dtVancouver->diffInHours($dtOttawa, false); // -3 $dt = Carbon::createMidnightDate(2012, 1, 31); echo $dt->diffInDays($dt->copy()->addMonth()); // 31 echo $dt->diffInDays($dt->copy()->subMonth(), false); // -31 $dt = Carbon::createMidnightDate(2012, 4, 30); echo $dt->diffInDays($dt->copy()->addMonth()); // 30 echo $dt->diffInDays($dt->copy()->addWeek()); // 7 $dt = Carbon::createMidnightDate(2012, 1, 1); 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 echo $dt->addSeconds(120)->secondsSinceMidnight(); // 120 $interval = $dt->diffAsCarbonInterval($dt->copy()->subYears(3), false); echo ($interval->invert ? \'minus \' : \'plus \') . $interval->years; // minus 3
关于夏令时(DST)的重要注意,默认情况下,PHP DateTime不考虑DST,这意味着,像2014年3月30日这样只有23小时的一天在伦敦将被计算为24小时。
$date = new DateTime(\'2014-03-30 00:00:00\', new DateTimeZone(\'Europe/London\')); // DST off echo $date->modify(\'+25 hours\')->format(\'H:i\'); // 01:00 (DST on, 24 hours only have been actually added)
Carbon也遵循这种行为,增加/减少/降低秒/分钟/小时。但是我们提供了使用时间戳进行实时工作的方法:
$date = new Carbon(\'2014-03-30 00:00:00\', \'Europe/London\'); // DST off echo $date->addRealHours(25)->format(\'H:i\'); // 02:00 (DST on) echo $date->diffInRealHours(\'2014-03-30 00:00:00\'); // 25 echo $date->diffInHours(\'2014-03-30 00:00:00\'); // 26 echo $date->diffInRealMinutes(\'2014-03-30 00:00:00\'); // 1500 echo $date->diffInMinutes(\'2014-03-30 00:00:00\'); // 1560 echo $date->diffInRealSeconds(\'2014-03-30 00:00:00\'); // 90000 echo $date->diffInSeconds(\'2014-03-30 00:00:00\'); // 93600 echo $date->subRealHours(25)->format(\'H:i\'); // 00:00 (DST off)
同样的方法可以使用addRealMinutes()、subRealMinutes()、addRealSeconds()、subRealSeconds()和所有它们的唯一快捷方式:addRealHour()、subRealHour()、addrealmin()、subRealMinute()、addRealSecond()、subRealSecond()。
还有特殊的过滤器函数diffindaysfilter()、diffinhoursfilter()和difffilter(),以帮助您按天数、小时或自定义间隔过滤差异。例如,计算两个实例之间的周末天数:
$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 $dt = Carbon::create(2014, 1, 1)->endOfDay(); $dt2 = $dt->copy()->startOfDay(); $littleHandRotations = $dt->diffFiltered(CarbonInterval::minute(), function(Carbon $date) { return $date->minute === 0; }, $dt2, true); // true as last parameter returns absolute value echo $littleHandRotations; // 24 $date = Carbon::now()->addSeconds(3666); echo $date->diffInSeconds(); // 3666 echo $date->diffInMinutes(); // 61 echo $date->diffInHours(); // 1 echo $date->diffInDays(); // 0 $date = Carbon::create(2016, 1, 5, 22, 40, 32); echo $date->secondsSinceMidnight(); // 81632 echo $date->secondsUntilEndOfDay(); // 4767 $date1 = Carbon::createMidnightDate(2016, 1, 5); $date2 = Carbon::createMidnightDate(2017, 3, 15); echo $date1->diffInDays($date2); // 435 echo $date1->diffInWeekdays($date2); // 311 echo $date1->diffInWeekendDays($date2); // 124 echo $date1->diffInWeeks($date2); // 62 echo $date1->diffInMonths($date2); // 14 echo $date1->diffInYears($date2); // 1
所有的diffIn*滤波方法都采用1个可调用滤波器作为必要参数,一个date对象作为可选的第二个参数,如果缺失,使用now。您也可以将true作为第三个参数传递,以获得绝对值。
对于周/周末的高级处理,使用以下工具:
echo implode(\', \', Carbon::getDays()); // Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday $saturday = new Carbon(\'first saturday of 2019\'); $sunday = new Carbon(\'first sunday of 2019\'); $monday = new Carbon(\'first monday of 2019\'); echo implode(\', \', Carbon::getWeekendDays()); // 6, 0 var_dump($saturday->isWeekend()); // bool(true) var_dump($sunday->isWeekend()); // bool(true) var_dump($monday->isWeekend()); // bool(false) Carbon::setWeekendDays(array( Carbon::SUNDAY, Carbon::MONDAY, )); //自定义设置“周末” echo implode(\', \', Carbon::getWeekendDays()); // 0, 1 var_dump($saturday->isWeekend()); // bool(false),周六返回false var_dump($sunday->isWeekend()); // bool(true) var_dump($monday->isWeekend()); // bool(true),周一返回true Carbon::setWeekendDays(array( Carbon::SATURDAY, Carbon::SUNDAY, )); // weekend days and start/end of week or not linked Carbon::setWeekStartsAt(Carbon::FRIDAY); Carbon::setWeekEndsAt(Carbon::WEDNESDAY); // and it does not need neither to precede the start var_dump(Carbon::getWeekStartsAt() === Carbon::FRIDAY); // bool(true) var_dump(Carbon::getWeekEndsAt() === Carbon::WEDNESDAY); // bool(true) echo $saturday->copy()->startOfWeek()->toRfc850String(); // Friday, 06-Jul-18 00:00:00 EDT echo $saturday->copy()->endOfWeek()->toRfc850String(); // Wednesday, 11-Jul-18 23:59:59 EDT Carbon::setWeekStartsAt(Carbon::MONDAY); Carbon::setWeekEndsAt(Carbon::SUNDAY); echo $saturday->copy()->startOfWeek()->toRfc850String(); // Monday, 02-Jul-18 00:00:00 EDT echo $saturday->copy()->endOfWeek()->toRfc850String(); // Sunday, 08-Jul-18 23:59:59 EDT
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Difference for Humans
对人类来说,一个月前比30天前更容易阅读。这是在大多数日期库中常见的函数,所以我也想在这里添加它。函数的唯一参数是另一个要对其进行diff的Carbon实例,当然,如果没有指定,它默认为now()。
此方法将在相对于实例的差值和传入实例的差值之后添加短语。有4个可能性:
当将过去的值与现在的默认值进行比较时:
1小时前
5个月前
当将未来的值与现在的默认值进行比较时:
从现在开始的1小时
从现在开始的5个月
当比较一个过去的值与另一个值时:
前1小时
5个月前
当比较未来的价值与另一个价值时:
1小时后
5个月后
您还可以将true作为第二个参数传递,以便从现在开始删除修饰符,等等:diffforhuman ($other, true)。
如果在所使用的语言环境:diffforhuman ($other, false, true)中可用,您可以将true作为第三个参数传递给它,以使用简短语法。
您可以将1和6之间的数字作为第4个参数传递给diffforhuman ($other, false, false, 4)。
$other实例可以是DateTime、Carbon实例或任何实现DateTimeInterface的对象,如果传递了一个字符串,它将被解析为获取一个Carbon实例,如果传递了null,那么将使用Carbon: now()。
// 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(21-27都返回这个,一个周的单位是7天,小于7直接舍去) echo Carbon::now()->subDays(24)->diffForHumans(null, true); // 3 weeks(21-27都返回这个,一个周的单位是7天,小于7直接舍去) echo Carbon::parse(\'2019-08-03\')->diffForHumans(\'2019-08-13\'); // 1 week before(时间间隔7-13天都是返回这个,一个周的单位是7天,小于7直接舍去) echo Carbon::parse(\'2000-01-01 00:50:32\')->diffForHumans(\'@946684800\'); // 5 hours after(同理,都是舍去的) echo Carbon::create(2018, 2, 26, 4, 29, 43)->diffForHumans(Carbon::create(2016, 6, 21, 0, 0, 0), false, false, 6); // 1 year 8 months 5 days 4 hours 29 minutes 43 seconds after
您还可以在调用diffforhuman()之前使用Carbon::setLocale(\’fr\’)更改字符串的locale。有关更多细节,请参见本地化部分。
可以通过以下方式启用/禁用diffforhuman()选项:
Carbon::enableHumanDiffOption(Carbon::NO_ZERO_DIFF); var_dump((bool) (Carbon::getHumanDiffOptions() & Carbon::NO_ZERO_DIFF)); // bool(true) Carbon::disableHumanDiffOption(Carbon::NO_ZERO_DIFF); var_dump((bool) (Carbon::getHumanDiffOptions() & Carbon::NO_ZERO_DIFF)); // bool(false)
可用的选项是:
Carbon::NO_ZERO_DIFF(默认启用):将空diff变为1秒
Carbon::JUST_NOW在默认情况下是禁用的):从现在开始变为“刚才”
Carbon:ONE_DAY_WORDS(默认禁用):将“从现在/之前1天”变为“昨天/明天”
Carbon::TWO_DAY_WORDS(默认禁用):将“从现在/之前2天”变为“昨天/之后”
Carbon::JUST_NOW,Carbon::ONE_DAY_WORDS和Carbon::TWO_DAY_WORDS现在只能使用en和fr语言,其他语言将会恢复到以前的行为,直到添加缺失的翻译。
使用管道操作符一次启用/禁用多个选项,例如:Carbon::ONE_DAY_WORDS | Carbon::TWO_DAY_WORDS
您还可以使用setHumanDiffOptions($options)禁用所有选项,然后只激活作为参数传递的选项。
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Modifiers
这些方法组对当前实例进行了有益的修改。他们中的大多数方法的名字都是不言自明的……或者至少应该是这样。您还会注意到startOfXXX()、next()和previous()方法将时间设置为00:00,endOfXXX()方法将时间设置为23:59:59。
唯一稍有不同的是average()函数。它将实例移动到其本身和提供的碳参数之间的中间日期。
$dt = Carbon::create(2012, 1, 31, 15, 32, 45); echo $dt->startOfMinute(); // 2012-01-31 15:32:00 $dt = Carbon::create(2012, 1, 31, 15, 32, 45); echo $dt->endOfMinute(); // 2012-01-31 15:32:59 $dt = Carbon::create(2012, 1, 31, 15, 32, 45); echo $dt->startOfHour(); // 2012-01-31 15:00:00 $dt = Carbon::create(2012, 1, 31, 15, 32, 45); echo $dt->endOfHour(); // 2012-01-31 15:59:59 $dt = Carbon::create(2012, 1, 31, 15, 32, 45); echo Carbon::getMidDayAt(); // 12获取正午时间 echo $dt->midDay(); // 2012-01-31 12:00:00 Carbon::setMidDayAt(13); //设置正午时间为13点 echo Carbon::getMidDayAt(); // 13 echo $dt->midDay(); // 2012-01-31 13:00:00 Carbon::setMidDayAt(12); $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 十年(“年代?”)的开始1990,2000,2010,2010 $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(); // 2001-01-01 00:00:00 世纪的开始?为什么不是2000-01-01 00:00:00???可能老外就是这个定义的吧…… $dt = Carbon::create(2012, 1, 31, 12, 0, 0); echo $dt->endOfCentury(); // 2100-12-31 23:59:59 世纪的结束?为什么不是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 ISO8601标准每周的开始是周一,老外好像认为每周的开始是周日…… $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 $dt->next(Carbon::WEDNESDAY); // 2012-02-01 00:00:00 传了参数表示“下一个周三”,不传表示“明天” var_dump($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 $dt->previous(Carbon::WEDNESDAY); // 2012-01-25 00:00:00 传了参数表示“上一个周三”,不传表示“昨天” var_dump($dt->dayOfWeek == Carbon::WEDNESDAY); // bool(true) $dt = Carbon::create(2012, 1, 1, 12, 0, 0); echo $dt->previous(); // 2011-12-25 00:00:00 $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 (1+30)/2 = 15 int运算 echo Carbon::create(2014, 5, 30, 0, 0, 0)->firstOfMonth(); // 2014-05-01 00:00:00 这个月的第一天 echo Carbon::create(2014, 5, 30, 0, 0, 0)->firstOfMonth(Carbon::MONDAY); // 2014-05-05 00:00:00 这个月的第一个周一 echo Carbon::create(2014, 5, 30, 0, 0, 0)->lastOfMonth(); // 2014-05-31 00:00:00 这个月的最后一天 echo Carbon::create(2014, 5, 30, 0, 0, 0)->lastOfMonth(Carbon::TUESDAY); // 2014-05-27 00:00:00 这个月的最后一个周二 echo Carbon::create(2014, 5, 30, 0, 0, 0)->nthOfMonth(2, Carbon::SATURDAY); // 2014-05-10 00:00:00 这个月的第“2”个“周六”,2和周六是参数 echo Carbon::create(2014, 5, 30, 0, 0, 0)->firstOfQuarter(); // 2014-04-01 00:00:00 这个季度的第一天(5月是第二个季度,所以是4月1号) echo Carbon::create(2014, 5, 30, 0, 0, 0)->firstOfQuarter(Carbon::MONDAY); // 2014-04-07 00:00:00 这个季度的第一个周一 echo Carbon::create(2014, 5, 30, 0, 0, 0)->lastOfQuarter(); // 2014-06-30 00:00:00 这个季度的最后一天 echo Carbon::create(2014, 5, 30, 0, 0, 0)->lastOfQuarter(Carbon::TUESDAY); // 2014-06-24 00:00:00 这个季度的最后一个周二 echo Carbon::create(2014, 5, 30, 0, 0, 0)->nthOfQuarter(2, Carbon::SATURDAY); // 2014-04-12 00:00:00 这个季度的第“2”个“周六”,2和周六是参数 echo Carbon::create(2014, 5, 30, 0, 0, 0)->startOfQuarter(); // 2014-04-01 00:00:00 这个季度的开始 echo Carbon::create(2014, 5, 30, 0, 0, 0)->endOfQuarter(); // 2014-06-30 23:59:59 这个季度的结束 echo Carbon::create(2014, 5, 30, 0, 0, 0)->firstOfYear(); // 2014-01-01 00:00:00 同上…… echo Carbon::create(2014, 5, 30, 0, 0, 0)->firstOfYear(Carbon::MONDAY); // 2014-01-06 00:00:00 echo Carbon::create(2014, 5, 30, 0, 0, 0)->lastOfYear(); // 2014-12-31 00:00:00 echo Carbon::create(2014, 5, 30, 0, 0, 0)->lastOfYear(Carbon::TUESDAY); // 2014-12-30 00:00:00 echo Carbon::create(2014, 5, 30, 0, 0, 0)->nthOfYear(2, Carbon::SATURDAY); // 2014-01-11 00:00:00 echo Carbon::create(2018, 2, 23, 0, 0, 0)->nextWeekday(); // 2018-02-26 00:00:00 下周一 echo Carbon::create(2018, 2, 23, 0, 0, 0)->previousWeekday(); // 2018-02-22 00:00:00 这周的上一个工作日 echo Carbon::create(2018, 2, 21, 0, 0, 0)->nextWeekendDay(); // 2018-02-24 00:00:00 即将要过的周末的第一天(即这星期的周六,如果今天是周六,则结果是周日) echo Carbon::create(2018, 2, 21, 0, 0, 0)->previousWeekendDay(); // 2018-02-18 00:00:00 刚过完的周末的最后一个(即上一周的周日,如果今天是周日,则结果是周六)
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Constants
下面的常数是在Carbon中定义的。
// These getters specifically return integers, ie intval() 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) var_dump(Carbon::YEARS_PER_CENTURY); // int(100) var_dump(Carbon::YEARS_PER_DECADE); // int(10) var_dump(Carbon::MONTHS_PER_YEAR); // int(12) var_dump(Carbon::WEEKS_PER_YEAR); // int(52) var_dump(Carbon::DAYS_PER_WEEK); // int(7) var_dump(Carbon::HOURS_PER_DAY); // int(24) var_dump(Carbon::MINUTES_PER_HOUR); // int(60) var_dump(Carbon::SECONDS_PER_MINUTE); // int(60) $dt = Carbon::createFromDate(2012, 10, 6); if ($dt->dayOfWeek === Carbon::SATURDAY) { echo \'Place bets on Ottawa Senators Winning!\'; }
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Serialization
Carbon实例能被序列化的。
$dt = Carbon::create(2012, 12, 25, 20, 30, 00, \'Europe/Moscow\'); echo serialize($dt); // O:13:"Carbon\Carbon":3:{s:4:"date";s:26:"2012-12-25 20:30:00.000000";s:13:"timezone_type";i:3;s:8:"timezone";s:13:"Europe/Moscow";} // 等同于: echo $dt->serialize(); // O:13:"Carbon\Carbon":3:{s:4:"date";s:26:"2012-12-25 20:30:00.000000";s:13:"timezone_type";i:3;s:8:"timezone";s:13:"Europe/Moscow";} $dt = \'O:13:"Carbon\Carbon":3:{s:4:"date";s:26:"2012-12-25 20:30:00.000000";s:13:"timezone_type";i:3;s:8:"timezone";s:13:"Europe/Moscow";}\'; echo unserialize($dt)->format(\'Y-m-d\TH:i:s.uP T\'); // 2012-12-25T20:30:00.000000+04:00 MSK // 等同于: echo Carbon::fromSerialized($dt)->format(\'Y-m-d\TH:i:s.uP T\'); // 2012-12-25T20:30:00.000000+04:00 MSK
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JSON
Carbon实例可以从JSON编码和解码(这些特性只能从PHP 5.4+中获得,参见下面关于PHP 5.3的注释)。
$dt = Carbon::create(2012, 12, 25, 20, 30, 00, \'Europe/Moscow\'); echo json_encode($dt); // {"date":"2012-12-25 20:30:00.000000","timezone_type":3,"timezone":"Europe\/Moscow"} $json = \'{"date":"2012-12-25 20:30:00.000000","timezone_type":3,"timezone":"Europe\/Moscow"}\'; $dt = Carbon::__set_state(json_decode($json, true)); echo $dt->format(\'Y-m-d\TH:i:s.uP T\'); // 2012-12-25T20:30:00.000000+04:00 MSK
您可以使用serializeUsing()自定义序列化。
$dt = Carbon::create(2012, 12, 25, 20, 30, 00, \'Europe/Moscow\'); Carbon::serializeUsing(function ($date) { return $date->getTimestamp(); }); echo json_encode($dt); /* 1356453000 */ // Call serializeUsing with null to reset the serializer: Carbon::serializeUsing(null);
jsonSerialize()方法返回中间通过“json_encode”将其转换为字符串,它还允许您使用PHP 5.3兼容性。
$dt = Carbon::create(2012, 12, 25, 20, 30, 00, \'Europe/Moscow\'); echo json_encode($dt->jsonSerialize()); // {"date":"2012-12-25 20:30:00.000000","timezone_type":3,"timezone":"Europe\/Moscow"} // This is equivalent to the first json_encode example but works with PHP 5.3. // And it can be used separately: var_dump($dt->jsonSerialize()); // array(3) { ["date"]=> string(26) "2012-12-25 20:30:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(13) "Europe/Moscow" }
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Macro
如果您习惯于使用Laravel和对象(如响应或集合),您可能熟悉这个宏概念。Carbon macro()的工作方式与Laravel宏特性相同,它将方法名作为第一个参数,闭包作为第二个参数。这使得闭包操作可以作为一个具有给定名称的方法在所有Carbon实例(也可以作为Carbon static方法)上使用。
在PHP 5.4中,$this可用于闭包中引用当前实例。对于PHP 5.3的兼容性,我们还向闭包添加了一个“$self”属性。例子:
Carbon::macro(\'diffFromYear\', function ($year, $self = null) { // 这个块是为了在独立的Carbon上与PHP版本< 5.4和Laravel兼容 if (!isset($self) && isset($this)) { $self = $this; } //兼容性块的结束。 return $self->diffForHumans(Carbon::create($year, 1, 1, 0, 0, 0), false, false, 3); }); echo Carbon::parse(\'2020-01-12 12:00:00\')->diffFromYear(2019); // 1 year 1 week 4 days after
兼容性块允许您确保宏的完全兼容性。一个关于Illuminate\Support\Carbon (Laravel包装类)的宏将不会被定义,正如上面在PHP 5.3 $this中提到的,这个不会被定义。要使宏在任何地方都能工作,只需粘贴这个if语句测试如果它是定义的,而不是$self然后复制它,然后在函数体中使用$self。
不管您是否省略了一些可选参数,只要$self有这个名称,并且是最后一个参数:
Carbon::macro(\'diffFromYear\', function ($year, $absolute = false, $short = false, $parts = 1, $self = null) { // compatibility chunk if (!isset($self) && isset($this)) { $self = $this; } return $self->diffForHumans(Carbon::create($year, 1, 1, 0, 0, 0), $absolute, $short, $parts); }); echo Carbon::parse(\'2020-01-12 12:00:00\')->diffFromYear(2019); // 1 year after echo Carbon::parse(\'2020-01-12 12:00:00\')->diffFromYear(2019, true); // 1 year echo Carbon::parse(\'2020-01-12 12:00:00\')->diffFromYear(2019, true, true); // 1yr echo Carbon::parse(\'2020-01-12 12:00:00\')->diffFromYear(2019, true, true, 5); // 1yr 1w 4d 12h
还可以将宏分组到类中,并与mixin()一起应用
Class BeerDayCarbonMixin { public function nextBeerDay() { return function ($self = null) { // compatibility chunk if (!isset($self) && isset($this)) { $self = $this; } return $self->modify(\'next wednesday\'); }; } public function previousBeerDay() { return function ($self = null) { // compatibility chunk if (!isset($self) && isset($this)) { $self = $this; } return $self->modify(\'previous wednesday\'); }; } } Carbon::mixin(new BeerDayCarbonMixin()); $date = Carbon::parse(\'First saturday of December 2018\'); echo $date->previousBeerDay(); // 2018-11-28 00:00:00 echo $date->nextBeerDay(); // 2018-12-05 00:00:00
您可以用hasMacro()检查是否可用宏(包括mixin)
var_dump(Carbon::hasMacro(\'previousBeerDay\')); // bool(true) var_dump(Carbon::hasMacro(\'diffFromYear\')); // bool(true) var_dump(Carbon::hasMacro(\'dontKnowWhat\')); // bool(false)
你猜怎么着?在CarbonInterval和CarbonPeriod类上也可以使用所有的宏方法。
CarbonInterval::macro(\'twice\', function ($self = null) { return $self->times(2); }); echo CarbonInterval::day()->twice()->forHumans(); // 2 days echo CarbonInterval::hours(2)->minutes(15)->twice()->forHumans(true); // 4h 30m CarbonPeriod::macro(\'countWeekdays\', function ($self = null) { return $self->filter(\'isWeekday\')->count(); }); echo CarbonPeriod::create(\'2017-11-01\', \'2017-11-30\')->countWeekdays(); // 22 echo CarbonPeriod::create(\'2017-12-01\', \'2017-12-31\')->countWeekdays(); // 21
以下是社区提出的一些有用的宏:
Carbon::macro(\'isHoliday\', function ($self = null) { // compatibility chunk if (!isset($self) && isset($this)) { $self = $this; } return in_array($self->format(\'d/m\'), [ \'25/12\', // Christmas \'01/01\', // New Year // ... ]); }); var_dump(Carbon::createMidnightDate(2012, 12, 25)->isHoliday()); // bool(true) var_dump(Carbon::createMidnightDate(2017, 6, 25)->isHoliday()); // bool(false) var_dump(Carbon::createMidnightDate(2021, 1, 1)->isHoliday()); // bool(true)
Credit:kylekatarnls(# 116)。
检查cmixin/业务日以获得更完整的业务日处理程序。
Class CurrentDaysCarbonMixin { /** * Get the all dates of week * * @return array */ public static function getCurrentWeekDays() { return function ($self = null) { // compatibility chunk if (!isset($self) && isset($this)) { $self = $this; } $startOfWeek = ($self ?: static::now())->startOfWeek()->subDay(); $weekDays = array(); for ($i = 0; $i < static::DAYS_PER_WEEK; $i++) { $weekDays[] = $startOfWeek->addDay()->startOfDay()->copy(); } return $weekDays; }; } /** * Get the all dates of month * * @return array */ public static function getCurrentMonthDays() { return function ($self = null) { // compatibility chunk if (!isset($self) && isset($this)) { $self = $this; } $startOfMonth = ($self ?: static::now())->startOfMonth()->subDay(); $endOfMonth = ($self ?: static::now())->endOfMonth()->format(\'d\'); $monthDays = array(); for ($i = 0; $i < $endOfMonth; $i++) { $monthDays[] = $startOfMonth->addDay()->startOfDay()->copy(); } return $monthDays; }; } } Carbon::mixin(new CurrentDaysCarbonMixin()); function dumpDateList($dates) { echo substr(implode(\', \', $dates), 0, 100).\'...\'; } dumpDateList(Carbon::getCurrentWeekDays()); // 2018-07-02 00:00:00, 2018-07-03 00:00:00, 2018-07-04 00:00:00, 2018-07-05 00:00:00, 2018-07-06 00:00... dumpDateList(Carbon::getCurrentMonthDays()); // 2018-07-01 00:00:00, 2018-07-02 00:00:00, 2018-07-03 00:00:00, 2018-07-04 00:00:00, 2018-07-05 00:00... dumpDateList(Carbon::now()->subMonth()->getCurrentWeekDays()); // 2018-06-04 00:00:00, 2018-06-05 00:00:00, 2018-06-06 00:00:00, 2018-06-07 00:00:00, 2018-06-08 00:00... dumpDateList(Carbon::now()->subMonth()->getCurrentMonthDays()); // 2018-06-01 00:00:00, 2018-06-02 00:00:00, 2018-06-03 00:00:00, 2018-06-04 00:00:00, 2018-06-05 00:00...
Credit: meteguerlek (#1191).
Carbon::macro(\'toAtomStringWithNoTimezone\', function ($self = null) { // compatibility chunk if (!isset($self) && isset($this)) { $self = $this; } return $self->format(\'Y-m-d\TH:i:s\'); }); echo Carbon::parse(\'2021-06-16 20:08:34\')->toAtomStringWithNoTimezone(); // 2021-06-16T20:08:34
Credit: afrojuju1 (#1063).
Carbon::macro(\'easterDate\', function ($year) { return Carbon::createMidnightDate($year, 3, 21)->addDays(easter_days($year)); }); echo Carbon::easterDate(2015)->format(\'d/m\'); // 05/04 echo Carbon::easterDate(2016)->format(\'d/m\'); // 27/03 echo Carbon::easterDate(2017)->format(\'d/m\'); // 16/04 echo Carbon::easterDate(2018)->format(\'d/m\'); // 01/04 echo Carbon::easterDate(2019)->format(\'d/m\'); // 21/04
Credit: andreisena, 36864 (#1052).
查看cmixin/工作日以获得更完整的假日处理程序。
Carbon::macro(\'range\', function ($startDate, $endDate) { return new DatePeriod($startDate, new DateInterval(\'P1D\'), $endDate); }); foreach (Carbon::range(Carbon::createMidnightDate(2019, 3, 28), Carbon::createMidnightDate(2019, 4, 3)) as $date) { echo "$date\n"; } /* 2019-03-28 00:00:00 2019-03-29 00:00:00 2019-03-30 00:00:00 2019-03-31 00:00:00 2019-04-01 00:00:00 2019-04-02 00:00:00 */
class UserTimezoneCarbonMixin { public $userTimeZone; /** * Set user timezone, will be used before format function to apply current user timezone * * @param $timezone */ public function setUserTimezone() { $mixin = $this; return function ($timezone) use ($mixin) { $mixin->userTimeZone = $timezone; }; } /** * Returns date formatted according to given format. * * @param string $format * * @return string * * @link http://php.net/manual/en/datetime.format.php */ public function tzFormat() { $mixin = $this; return function ($format, $self = null) use ($mixin) { // compatibility chunk if (!isset($self) && isset($this)) { $self = $this; } if (!is_null($mixin->userTimeZone)) { $self->timezone($mixin->userTimeZone); } return $self->format($format); }; } } Carbon::mixin(new UserTimezoneCarbonMixin()); Carbon::setUserTimezone(\'Europe/Berlin\'); echo Carbon::createFromTime(12, 0, 0, \'UTC\')->tzFormat(\'H:i\'); // 14:00 echo Carbon::createFromTime(15, 0, 0, \'UTC\')->tzFormat(\'H:i\'); // 17:00 Carbon::setUserTimezone(\'America/Toronto\'); echo Carbon::createFromTime(12, 0, 0, \'UTC\')->tzFormat(\'H:i\'); // 08:00 echo Carbon::createFromTime(15, 0, 0, \'UTC\')->tzFormat(\'H:i\'); // 11:00
Credit: thiagocordeiro (#927).
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CarbonInterval
CarbonInterval类继承了PHP DateInterval类。
<?php class CarbonInterval extends \DateInterval { // code here }
你可以通过以下方式创建实例
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
如果您发现自己从另一个库继承了\DateInterval实例,不要害怕!您可以通过一个友好的instance()函数创建一个CarbonInterval实例。
$di = new \DateInterval(\'P1Y2M\'); // <== instance from another API $ci = CarbonInterval::instance($di); echo get_class($ci); // \'Carbon\CarbonInterval\' echo $ci; // 1 year 2 months
其他的帮助程序,但是要注意实现提供了帮助程序来处理几周,但是只节省了几天。数周是根据当前实例的总天数计算的。
echo CarbonInterval::year()->years; // 1 echo CarbonInterval::year()->dayz; // 0 echo CarbonInterval::days(24)->dayz; // 24 echo CarbonInterval::days(24)->daysExcludeWeeks; // 3 echo CarbonInterval::weeks(3)->days(14)->weeks; // 2 <-- days setter overwrites the current value echo CarbonInterval::weeks(3)->weeks; // 3 echo CarbonInterval::minutes(3)->weeksAndDays(2, 5); // 2 weeks 5 days 3 minutes
CarbonInterval扩展DateInterval,您可以使用ISO-8601的持续时间格式创建这两种格式:
$ci = CarbonInterval::create(\'P1Y2M3D\'); $ci = new CarbonInterval(\'PT0S\');
借助fromString()方法,可以从友好的字符串创建Carbon intervals。
CarbonInterval::fromString(\'2 minutes 15 seconds\'); CarbonInterval::fromString(\'2m 15s\'); // or abbreviated
注意这个月缩写为“mo”以区别于分钟和整个语法不区分大小写。
它还有一个方便的for human(),它被映射为__toString()实现,用于为人类打印间隔。
CarbonInterval::setLocale(\'fr\'); echo CarbonInterval::create(2, 1)->forHumans(); // 2 ans 1 mois echo CarbonInterval::hour()->seconds(3); // 1 heure 3 secondes CarbonInterval::setLocale(\'en\');
如您所见,您可以使用CarbonInterval::setLocale(\’fr\’)更改字符串的语言环境。
至于Carbon,您可以使用make方法从其他区间或字符串返回一个新的CarbonInterval实例:
$dateInterval = new DateInterval(\'P2D\'); $carbonInterval = CarbonInterval::month(); echo CarbonInterval::make($dateInterval)->forHumans(); // 2 days echo CarbonInterval::make($carbonInterval)->forHumans(); // 1 month echo CarbonInterval::make(\'PT3H\')->forHumans(); // 3 hours echo CarbonInterval::make(\'1h 15m\')->forHumans(); // 1 hour 15 minutes // Pass true to get short format echo CarbonInterval::make(\'1h 15m\')->forHumans(true); // 1h 15m
本机DateInterval分别添加和相乘,因此:
$interval = CarbonInterval::make(\'7h 55m\'); $interval->add(CarbonInterval::make(\'17h 35m\')); $interval->times(3); echo $interval->forHumans(); // 72 hours 270 minutes
从单位到单位的输入中得到纯计算。将分钟级联成小时、小时级联成天等。使用级联方法:
echo $interval->forHumans(); // 72 hours 270 minutes echo $interval->cascade()->forHumans(); // 3 days 4 hours 30 minutes
默认的因素有:
1分钟= 60秒
1小时=60分钟
1天=24小时
1周= 7天
1个月= 4周
1年= 12个月
CarbonIntervals 没有上下文,所以它们不能更精确(没有DST、没有闰年、没有实际的月长或年长)。但是你可以完全定制这些因素。例如处理工作时间日志:
$cascades = CarbonInterval::getCascadeFactors(); // save initial factors CarbonInterval::setCascadeFactors(array( \'minute\' => array(60, \'seconds\'), \'hour\' => array(60, \'minutes\'), \'day\' => array(8, \'hours\'), \'week\' => array(5, \'days\'), // in this example the cascade won\'t go farther than week unit )); echo CarbonInterval::fromString(\'20h\')->cascade()->forHumans(); // 2 days 4 hours echo CarbonInterval::fromString(\'10d\')->cascade()->forHumans(); // 2 weeks echo CarbonInterval::fromString(\'3w 18d 53h 159m\')->cascade()->forHumans(); // 7 weeks 4 days 7 hours 39 minutes // You can see currently set factors with getFactor: echo CarbonInterval::getFactor(\'minutes\', /* per */ \'hour\'); // 60 echo CarbonInterval::getFactor(\'days\', \'week\'); // 5 // And common factors can be get with short-cut methods: echo CarbonInterval::getDaysPerWeek(); // 5 echo CarbonInterval::getHoursPerDay(); // 8 echo CarbonInterval::getMinutesPerHours(); // 60 echo CarbonInterval::getSecondsPerMinutes(); // 60 CarbonInterval::setCascadeFactors($cascades); // restore original factors
是否可能将间隔转换为给定的单元(使用提供的级联因子)。
echo CarbonInterval::days(3)->hours(5)->total(\'hours\'); // 77 echo CarbonInterval::days(3)->hours(5)->totalHours; // 77 echo CarbonInterval::months(6)->totalWeeks; // 24 echo CarbonInterval::year()->totalDays; // 336
您还可以使用spec()获得inverval的ISO 8601规范
echo CarbonInterval::days(3)->hours(5)->spec(); // P3DT5H
也可以从DateInterval对象获取它,因为它是静态助手:
echo CarbonInterval::getDateIntervalSpec(new DateInterval(\'P3DT6M10S\')); // P3DT6M10S
使用compare()和comparedateinterval()方法可以对日期间隔列表进行排序:
$halfDay = CarbonInterval::hours(12); $oneDay = CarbonInterval::day(); $twoDay = CarbonInterval::days(2); echo CarbonInterval::compareDateIntervals($oneDay, $oneDay); // 0 echo $oneDay->compare($oneDay); // 0 echo CarbonInterval::compareDateIntervals($oneDay, $halfDay); // 1 echo $oneDay->compare($halfDay); // 1 echo CarbonInterval::compareDateIntervals($oneDay, $twoDay); // -1 echo $oneDay->compare($twoDay); // -1 $list = array($twoDay, $halfDay, $oneDay); usort($list, array(\'Carbon\CarbonInterval\', \'compareDateIntervals\')); echo implode(\', \', $list); // 12 hours, 1 day, 2 days
最后,通过使用互补参数调用toPeriod(),可以将一个CarbonInterval实例转换为一个CarbonPeriod实例。
我听到你问什么是CarbonPeriod 实例。哦!完美过渡到下一章。
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CarbonPeriod
CarbonPeriod是一个友好的DatePeriod版本,具有许多快捷方式。
// Create a new instance: $period = new CarbonPeriod(\'2018-04-21\', \'3 days\', \'2018-04-27\'); // Use static constructor: $period = CarbonPeriod::create(\'2018-04-21\', \'3 days\', \'2018-04-27\'); // Use the fluent setters: $period = CarbonPeriod::since(\'2018-04-21\')->days(3)->until(\'2018-04-27\'); // Start from a CarbonInterval: $period = CarbonInterval::days(3)->toPeriod(\'2018-04-21\', \'2018-04-27\');
CarbonPeriod可以通过多种方式构建:
开始日期、结束日期和可选间隔(默认为1天),
起始日期,递归次数和可选区间,
ISO 8601间隔规范。
日期可以是DateTime/Carbon实例,绝对字符串如“2007-10-15 15:00”或相对字符串,例如“next monday”。Interval可以作为DateInterval/CarbonInterval实例、ISO 8601的Interval规范(如“P4D”)或人类可读字符串(如“4 days”)给出。
默认构造函数和create()方法在参数类型和顺序方面都很容易理解,所以如果您想要更精确,建议使用fluent语法。另一方面,您可以将动态值数组传递给createFromArray(),它将使用给定的数组作为参数列表构造一个新实例。
CarbonPeriod实现迭代器接口。它意味着它可以直接传递给foreach循环:
$period = CarbonPeriod::create(\'2018-04-21\', \'3 days\', \'2018-04-27\'); foreach ($period as $key => $date) { if ($key) { echo \', \'; } echo $date->format(\'m-d\'); } // 04-21, 04-24, 04-27 // Here is what happens under the hood: $period->rewind(); // restart the iteration while ($period->valid()) { // check if current item is valid if ($period->key()) { // echo comma if current key is greater than 0 echo \', \'; } echo $period->current()->format(\'m-d\'); // echo current date $period->next(); // move to the next item } // 04-21, 04-24, 04-27
参数可以在迭代过程中进行修改:
$period = CarbonPeriod::create(\'2018-04-29\', 7); $dates = array(); foreach ($period as $key => $date) { if ($key === 3) { $period->invert()->start($date); // invert() is an alias for invertDateInterval() } $dates[] = $date->format(\'m-d\'); } echo implode(\', \', $dates); // 04-29, 04-30, 05-01, 05-02, 05-01, 04-30, 04-29
和DatePeriod一样,CarbonPeriod也支持ISO 8601时间间隔规范。
请注意,本机日期周期将递归处理为多次重复间隔。因此,在排除开始日期时,它将减少一个结果。CarbonPeriod的自定义过滤器的引入使得知道结果的数量变得更加困难。由于这个原因,我们稍微改变了实现,递归被视为返回日期的总体限制。
// Possible options are: CarbonPeriod::EXCLUDE_START_DATE | CarbonPeriod::EXCLUDE_END_DATE // Default value is 0 which will have the same effect as when no options are given. $period = CarbonPeriod::createFromIso(\'R4/2012-07-01T00:00:00Z/P7D\', CarbonPeriod::EXCLUDE_START_DATE); $dates = array(); foreach ($period as $date) { $dates[] = $date->format(\'m-d\'); } echo implode(\', \', $dates); // 07-08, 07-15, 07-22, 07-29
您可以从不同的getter中检索数据:
$period = CarbonPeriod::create(\'2010-05-06\', \'2010-05-25\', CarbonPeriod::EXCLUDE_START_DATE); $exclude = $period->getOptions() & CarbonPeriod::EXCLUDE_START_DATE; echo $period->getStartDate(); // 2010-05-06 00:00:00 echo $period->getEndDate(); // 2010-05-25 00:00:00 echo $period->getDateInterval(); // 1 day echo $exclude ? \'exclude\' : \'include\'; // exclude var_dump($period->isStartExcluded()); // bool(true) var_dump($period->isEndExcluded()); // bool(false) echo $period->toString(); // Every 1 day from 2010-05-06 to 2010-05-25 echo $period; /*implicit toString*/ // Every 1 day from 2010-05-06 to 2010-05-25
附加的getter允许您以数组的形式访问结果:
$period = CarbonPeriod::create(\'2010-05-11\', \'2010-05-13\'); echo $period->count(); // 3, equivalent to count($period) echo implode(\', \', $period->toArray()); // 2010-05-11 00:00:00, 2010-05-12 00:00:00, 2010-05-13 00:00:00 echo $period->first(); // 2010-05-11 00:00:00 echo $period->last(); // 2010-05-13 00:00:00
注意,如果您打算使用上述函数,将toArray()调用的结果存储为变量并使用它是一个好主意,因为每个调用在内部执行一个完整的迭代。
想要更改参数,可以使用setter方法:
$period = CarbonPeriod::create(\'2010-05-01\', \'2010-05-14\', CarbonPeriod::EXCLUDE_END_DATE); $period->setStartDate(\'2010-05-11\'); echo implode(\', \', $period->toArray()); // 2010-05-11 00:00:00, 2010-05-12 00:00:00, 2010-05-13 00:00:00 // Second argument can be optionally used to exclude the date from the results. $period->setStartDate(\'2010-05-11\', false); $period->setEndDate(\'2010-05-14\', true); echo implode(\', \', $period->toArray()); // 2010-05-12 00:00:00, 2010-05-13 00:00:00, 2010-05-14 00:00:00 $period->setRecurrences(2); echo implode(\', \', $period->toArray()); // 2010-05-12 00:00:00, 2010-05-13 00:00:00 $period->setDateInterval(\'PT12H\'); echo implode(\', \', $period->toArray()); // 2010-05-11 12:00:00, 2010-05-12 00:00:00
您可以使用setOptions()更改选项以替换所有选项,但也可以分别更改:
$period = CarbonPeriod::create(\'2010-05-06\', \'2010-05-25\'); var_dump($period->isStartExcluded()); // bool(false) var_dump($period->isEndExcluded()); // bool(false) $period->toggleOptions(CarbonPeriod::EXCLUDE_START_DATE, true); // true, false or nothing to invert the option var_dump($period->isStartExcluded()); // bool(true) var_dump($period->isEndExcluded()); // bool(false) (unchanged) $period->excludeEndDate(); // specify false to include, true or omit to exclude var_dump($period->isStartExcluded()); // bool(true) (unchanged) var_dump($period->isEndExcluded()); // bool(true) $period->excludeStartDate(false); // specify false to include, true or omit to exclude var_dump($period->isStartExcluded()); // bool(false) var_dump($period->isEndExcluded()); // bool(true)
如前所述,根据ISO 8601规范,递归是重复间隔的数倍。因此,本机DatePeriod将根据开始日期的排除而改变返回日期的数量。与此同时,CarbonPeriod在输入和允许自定义过滤器方面更加宽容,将递归作为返回日期的总体限制:
$period = CarbonPeriod::createFromIso(\'R4/2012-07-01T00:00:00Z/P7D\'); $days = array(); foreach ($period as $date) { $days[] = $date->format(\'d\'); } echo $period->getRecurrences(); // 4 echo implode(\', \', $days); // 01, 08, 15, 22 $days = array(); $period->setRecurrences(3)->excludeStartDate(); foreach ($period as $date) { $days[] = $date->format(\'d\'); } echo $period->getRecurrences(); // 3 echo implode(\', \', $days); // 08, 15, 22 $days = array(); $period = CarbonPeriod::recurrences(3)->sinceNow(); foreach ($period as $date) { $days[] = $date->format(\'Y-m-d\'); } echo implode(\', \', $days); // 2018-07-05, 2018-07-06, 2018-07-07
DatePeriod返回的日期可以很容易地过滤。例如,过滤器可以用于跳过某些日期或只在工作日或周末迭代。筛选函数应该返回true以接受日期,返回false以跳过日期,但继续搜索或CarbonPeriod::END_ITERATION以结束迭代。
$period = CarbonPeriod::between(\'2000-01-01\', \'2000-01-15\'); $weekendFilter = function ($date) { return $date->isWeekend(); }; $period->filter($weekendFilter); $days = array(); foreach ($period as $date) { $days[] = $date->format(\'m-d\'); } echo implode(\', \', $days); // 01-01, 01-02, 01-08, 01-09, 01-15
您还可以跳过循环中的一个或多个值。
$period = CarbonPeriod::between(\'2000-01-01\', \'2000-01-10\'); $days = array(); foreach ($period as $date) { $day = $date->format(\'m-d\'); $days[] = $day; if ($day === \'01-04\') { $period->skip(3); } } echo implode(\', \', $days); // 01-01, 01-02, 01-03, 01-04, 01-08, 01-09, 01-10
getFilters()允许您在一个时间段内检索所有存储的过滤器。但是要注意递归限制和结束日期将出现在返回的数组中,因为它们作为过滤器存储在内部。
$period = CarbonPeriod::end(\'2000-01-01\')->recurrences(3); var_export($period->getFilters()); /* array ( 0 => array ( 0 => \'Carbon\\CarbonPeriod::filterEndDate\', 1 => NULL, ), 1 => array ( 0 => \'Carbon\\CarbonPeriod::filterRecurrences\', 1 => NULL, ), ) */
过滤器存储在堆栈中,可以使用一组特殊的方法进行管理:
$period = CarbonPeriod::between(\'2000-01-01\', \'2000-01-15\'); $weekendFilter = function ($date) { return $date->isWeekend(); }; var_dump($period->hasFilter($weekendFilter)); // bool(false) $period->addFilter($weekendFilter); var_dump($period->hasFilter($weekendFilter)); // bool(true) $period->removeFilter($weekendFilter); var_dump($period->hasFilter($weekendFilter)); // bool(false) // To avoid storing filters as variables you can name your filters: $period->prependFilter(function ($date) { return $date->isWeekend(); }, \'weekend\'); var_dump($period->hasFilter(\'weekend\')); // bool(true) $period->removeFilter(\'weekend\'); var_dump($period->hasFilter(\'weekend\')); // bool(false)
添加过滤器的顺序会对性能和结果产生影响,因此您可以使用addFilter()在堆栈末尾添加过滤器;您可以使用prependFilter()在开始时添加一个。甚至可以使用setfilter()替换所有的过滤器。请注意,您必须保持堆栈的正确格式,并记住关于递归限制和结束日期的内部过滤器。或者,您可以使用resetFilters()方法,然后逐个添加新的过滤器。
例如,当您添加一个限制尝试日期数量的自定义过滤器时,如果您在工作日过滤器之前或之后添加它,那么结果将是不同的。
// Note that you can pass a name of any Carbon method starting with "is", including macros $period = CarbonPeriod::between(\'2018-05-03\', \'2018-05-25\')->filter(\'isWeekday\'); $attempts = 0; $attemptsFilter = function () use (&$attempts) { return ++$attempts <= 5 ? true : CarbonPeriod::END_ITERATION; }; $period->prependFilter($attemptsFilter, \'attempts\'); $days = array(); foreach ($period as $date) { $days[] = $date->format(\'m-d\'); } echo implode(\', \', $days); // 05-03, 05-04, 05-07 $attempts = 0; $period->removeFilter($attemptsFilter)->addFilter($attemptsFilter, \'attempts\'); $days = array(); foreach ($period as $date) { $days[] = $date->format(\'m-d\'); } echo implode(\', \', $days); // 05-03, 05-04, 05-07, 05-08, 05-09
注意,内置的递归过滤器不是这样工作的。相反,它基于当前键,每个条目只增加一次,无论在找到有效日期之前需要检查多少个日期。如果您将它放在堆栈的开头或末尾,那么这个技巧将使它的工作方式相同。
为了简化CarbonPeriod的构建,添加了一些别名:
// "start", "since", "sinceNow": CarbonPeriod::start(\'2017-03-10\') == CarbonPeriod::create()->setStartDate(\'2017-03-10\'); // Same with optional boolean argument $inclusive to change the option about include/exclude start date: CarbonPeriod::start(\'2017-03-10\', true) == CarbonPeriod::create()->setStartDate(\'2017-03-10\', true); // "end", "until", "untilNow": CarbonPeriod::end(\'2017-03-20\') == CarbonPeriod::create()->setEndDate(\'2017-03-20\'); // Same with optional boolean argument $inclusive to change the option about include/exclude end date: CarbonPeriod::end(\'2017-03-20\', true) == CarbonPeriod::create()->setEndDate(\'2017-03-20\', true); // "dates", "between": CarbonPeriod::dates(..., ...) == CarbonPeriod::create()->setDates(..., ...); // "recurrences", "times": CarbonPeriod::recurrences(5) == CarbonPeriod::create()->setRecurrences(5); // "options": CarbonPeriod::options(...) == CarbonPeriod::create()->setOptions(...); // "toggle": CarbonPeriod::toggle(..., true) == CarbonPeriod::create()->toggleOptions(..., true); // "filter", "push": CarbonPeriod::filter(...) == CarbonPeriod::create()->addFilter(...); // "prepend": CarbonPeriod::prepend(...) == CarbonPeriod::create()->prependFilter(...); // "filters": CarbonPeriod::filters(...) == CarbonPeriod::create()->setFilters(...); // "interval", "each", "every", "step", "stepBy": CarbonPeriod::interval(...) == CarbonPeriod::create()->setDateInterval(...); // "invert": CarbonPeriod::invert() == CarbonPeriod::create()->invertDateInterval(); // "year", "months", "month", "weeks", "week", "days", "dayz", "day", // "hours", "hour", "minutes", "minute", "seconds", "second": CarbonPeriod::hours(5) == CarbonPeriod::create()->setDateInterval(new CarbonInterval::hours(5));
可以很容易地将CarbonPeriod转换为人类可读的字符串和ISO 8601规范:
$period = CarbonPeriod::create(\'2000-01-01 12:00\', \'3 days 12 hours\', \'2000-01-15 12:00\'); echo $period->toString(); // Every 3 days 12 hours from 2000-01-01 12:00:00 to 2000-01-15 12:00:00 echo $period->toIso8601String(); // 2000-01-01T12:00:00-05:00/P3DT12H/2000-01-15T12:00:00-05:00
英文原文:https://carbon.nesbot.com/docs/#api-interval
翻译有问题的地方还请斧正~