laravel carbon时间处理类使用
参考文章：https://www.jianshu.com/p/9d2b576acded
1、获取当前时间
//可传递一个有效的时区作为参数
echo Carbon::now();//2019-08-17 09:27:49
echo Carbon::now('America/Los_Angeles');//2019-08-17 02:27:49
2、获取昨今明天
//可传递一个有效的时区作为参数
echo Carbon::today();//2019-08-17 00:00:00
echo Carbon::tomorrow('America/Los_Angeles');//2019-08-18 00:00:00
echo Carbon::yesterday();//2019-08-16 00:00:00
//以上结果都是对象
3、转字符串类型
echo Carbon::today()->toDateTimeString();
echo Carbon::yesterday()->toDateTimeString();
echo Carbon::tomorrow()->toDateTimeString();
4、日期解析
echo Carbon::parse('2016-10-15')->toDateTimeString(); //2016-10-15 00:00:00
echo Carbon::parse('2016-10-15')->toDateTimeString(); //2016-10-15 00:00:00
echo Carbon::parse('2016-10-15 00:10:25')->toDateTimeString(); //2016-10-15 00:10:25
echo Carbon::parse('today')->toDateTimeString(); //2016-10-15 00:00:00
echo Carbon::parse('yesterday')->toDateTimeString(); //2016-10-14 00:00:00
echo Carbon::parse('tomorrow')->toDateTimeString(); //2016-10-16 00:00:00
echo Carbon::parse('2 days ago')->toDateTimeString(); //2016-10-13 20:49:53
echo Carbon::parse('+3 days')->toDateTimeString(); //2016-10-18 20:49:53
echo Carbon::parse('+2 weeks')->toDateTimeString(); //2016-10-29 20:49:53
echo Carbon::parse('+4 months')->toDateTimeString(); //2017-02-15 20:49:53
echo Carbon::parse('-1 year')->toDateTimeString(); //2015-10-15 20:49:53
echo Carbon::parse('next wednesday')->toDateTimeString(); //2016-10-19 00:00:00
echo Carbon::parse('last friday')->toDateTimeString(); //2016-10-14 00:00:00
5、构造日期
$year = '2015';
$month = '04';
$day = '12';
echo Carbon::createFromDate($year, $month, $day); //2015-04-12 20:55:59
$hour = '02';
$minute = '15':
$second = '30';
echo Carbon::create($year, $month, $day, $hour, $minute, $second); //2015-04-12 02:15:30
echo Carbon::createFromDate(null, 12, 25); // 年默认为当前年份
6、日期运算
//add-加 sub-减
echo Carbon::now()->addDays(25); //2016-11-09 14:00:01
echo Carbon::now()->addWeeks(3); //2016-11-05 14:00:01
echo Carbon::now()->addHours(25); //2016-10-16 15:00:01
echo Carbon::now()->subHours(2); //2016-10-15 12:00:01
echo Carbon::now()->addHours(2)->addMinutes(12); //2016-10-15 16:12:01
echo Carbon::now()->modify('+15 days'); //2016-10-30 14:00:01
echo Carbon::now()->modify('-2 days'); //2016-10-13 14:00:01
7、日期比较
/*
min –返回最小日期。
max – 返回最大日期。
eq – 判断两个日期是否相等。
gt – 判断第一个日期是否比第二个日期大。
lt – 判断第一个日期是否比第二个日期小。
gte – 判断第一个日期是否大于等于第二个日期。
lte – 判断第一个日期是否小于等于第二个日期。
*/
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)
8、判断一个日期是否介于两个日期之间
$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)
9、辅助方法
$dt = Carbon::now();
$dt->isWeekday();
$dt->isWeekend();
$dt->isYesterday();
$dt->isToday();
$dt->isTomorrow();
$dt->isFuture();
$dt->isPast();
$dt->isLeapYear();
$dt->isSameDay(Carbon::now());
$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!
10、将时间转为文字描述
echo Carbon::now()->subDays(5)->diffForHumans(); // 5天前
echo Carbon::now()->diffForHumans(Carbon::now()->subYear()); // 1年后
$dt = Carbon::createFromDate(2011, 8, 1);
echo $dt->diffForHumans($dt->copy()->addMonth()); // 1月前
echo $dt->diffForHumans($dt->copy()->subMonth()); // 11月后
echo Carbon::now()->addSeconds(5)->diffForHumans(); // 5秒距现在
echo Carbon::now()->subDays(24)->diffForHumans(); // 3周前
//可以把第二个参数设置为 true 来删除'前'、'距现在'等修饰语
echo Carbon::now()->subDays(24)->diffForHumans(null, true); // 3周
