Carbon インスタンス

// $dt = new Carbon();
// $dt = Carbon::now();
// $dt = new Carbon('2016-12-20 11:32:23');
//$dt = new Carbon('tomorrow');
//$dt = Carbon::today();
//$dt = Carbon::tommorow();
// $dt = Carbon::yesterday();
// $dt = Carbon::parse('2016-12-12 11:32:32');
// $dt = Carbon::create(2020,12, 12, 11, 32, 32);
$dt = Carbon::createFromFormat('Y/m/d H', '2016/12/20 20');

日時情報の取得

$dt = Carbon::now();
//echo $dt->year . PHP_EOL;
//echo $dt->month . PHP_EOL;
//echo $dt->day . PHP_EOL;
//echo $dt->hour . PHP_EOL;
//echo $dt->minute . PHP_EOL;
//echo $dt->second . PHP_EOL;
//echo $dt->dayOfWeek . PHP_EOL;
//echo $dt->dayOfYear . PHP_EOL;
//echo $dt->weekOfMonth . PHP_EOL;
//echo $dt->weekOfYear . PHP_EOL;
// echo $dt->timestamp . PHP_EOL;
// echo $dt->tzName . PHP_EOL;
echo $dt->format('Y年m月d日') . PHP_EOL;

日付判定

//var_dump($dt->isToday()) . PHP_EOL;
//var_dump($dt->isTommorow()) . PHP_EOL;
//var_dump($dt->isYesterday()) . PHP_EOL;
//var_dump($dt->isFuture()) . PHP_EOL;
//var_dump($dt->isPast()) . PHP_EOL;
//var_dump($dt->isLeapYear()) . PHP_EOL;
//var_dump($dt->isWeekday()) . PHP_EOL;
//var_dump($dt->isWeekend()) . PHP_EOL;
//var_dump($dt->isSameDay(Carbon::now())) . PHP_EOL;

変数をとって、日時を比較

$dt1 = Carbon::create(2020, 10, 1);
$dt2 = Carbon::create(2020, 11, 1);

// var_dump($dt1->eq($dt2)) . PHP_EOL;
//var_dump($dt1->gt($dt2)) . PHP_EOL;
//var_dump($dt1->lt($dt2)) . PHP_EOL;
//var_dump(Carbon::create(2010, 10, 10)->between($dt1, $dt2)) . PHP_EOL;
//echo $dt1->max($dt2) . PHP_EOL;
//echo $dt1->min($dt2) . PHP_EOL;

日付計算

// echo $dt->addYear(). PHP_EOL;
//echo $dt->addYears(3). PHP_EOL;
//echo $dt->subYears(3). PHP_EOL;
//echo $dt->addWeekdays(3). PHP_EOL;
//echo $dt->addWeekdays(3)->addWeekHours(3)->addWeekMinutes(3). PHP_EOL;

コピーメソッド

$dt = Carbon::now();
echo $dt->copy()->addYear() . PHP_EOL;
echo $dt . PHP_EOL;

日時指定

//echo $dt->startOfDay() . PHP_EOL;
//echo $dt->endOfDay() . PHP_EOL;
//echo $dt->startOfMonth() . PHP_EOL;
//echo $dt->endOfMonth() . PHP_EOL;
//echo $dt->startOfWeek() . PHP_EOL;
//echo $dt->endOfWeek() . PHP_EOL;
//echo $dt->next(Carbon::MONDAY) . PHP_EOL;
//echo $dt->previous(Carbon::MONDAY) . PHP_EOL;
//echo $dt->firstOfMonth(Carbon::MONDAY) . PHP_EOL;
//echo $dt->lastOfMonth(Carbon::MONDAY) . PHP_EOL;
//echo $dt->nthOfMonth(3, Carbon::MONDAY) . PHP_EOL;

日時の差

$dt1 = Carbon::create(2020, 10, 1);
$dt2 = Carbon::create(2020, 11, 1);

//echo $dt1->diffInDays($dt2) . PHP_EOL;
//echo $dt1->diffInHours($dt2) . PHP_EOL;
//echo $dt1->diffInMinutes($dt2) . PHP_EOL;
//echo $dt1->diffForHumans($dt2) . PHP_EOL;

setTestNow()を使った判定

$dt = Carbon::now();
$birthday = Carbon::create(1990, 10, 1);
Carbon::setTestNow(Carbon::create(2020, 10, 1));
echo Carbon::now() . PHP_EOL;
if($birthday->isBirthday(Carbon::now())){
  echo ':)' . PHP_EOL;
} else {
  echo ':<' . PHP_EOL;