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Php/laravel/laravel5/日付

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carbonを使う

use Carbon\Carbon;

使い方

$current = Carbon::now();
// get today - 2015-12-19 00:00:00
$today = Carbon::today();
// get yesterday - 2015-12-18 00:00:00
$yesterday = Carbon::yesterday();
// get tomorrow - 2015-12-20 00:00:00
$tomorrow = Carbon::tomorrow();
Carbon::createFromDate($year, $month, $day, $tz);
Carbon::createFromTime($hour, $minute, $second, $tz);
Carbon::create($year, $month, $day, $hour, $minute, $second, $tz);
$dt = Carbon::now();
$dt->year   = 2015;
$dt->month  = 04;
$dt->day    = 21;
$dt->hour   = 22;
$dt->minute = 32;
$dt->second = 5;
echo $dt->toDateString();               // 2015-12-19
echo $dt->toTimeString();               // 10:10:16
echo $dt->toDateTimeString();           // 2015-12-19 10:10:16

追加/差分

echo $dt->addYears(5);                   // 2017-01-31 00:00:00
echo $dt->addYear();                     // 2018-01-31 00:00:00
echo $dt->subYear();                     // 2017-01-31 00:00:00
echo $dt->subYears(5);                   // 2012-01-31 00:00:00
echo $dt->addMonths(60);                 // 2017-01-31 00:00:00
echo $dt->addMonth();                    // 2017-03-03 00:00:00 equivalent of $dt->month($dt->month + 1); so it wraps
echo $dt->subMonth();                    // 2017-02-03 00:00:00
echo $dt->subMonths(60);                 // 2012-02-03 00:00:00
echo $dt->addDays(29);                   // 2012-03-03 00:00:00
echo $dt->addDay();                      // 2012-03-04 00:00:00
echo $dt->subDay();                      // 2012-03-03 00:00:00
echo $dt->subDays(29);                   // 2012-02-03 00:00:00
echo $dt->addWeekdays(4);                // 2012-02-09 00:00:00
echo $dt->addWeekday();                  // 2012-02-10 00:00:00
echo $dt->subWeekday();                  // 2012-02-09 00:00:00
echo $dt->subWeekdays(4);                // 2012-02-03 00:00:00
echo $dt->addWeeks(3);                   // 2012-02-24 00:00:00
echo $dt->addWeek();                     // 2012-03-02 00:00:00
echo $dt->subWeek();                     // 2012-02-24 00:00:00
echo $dt->subWeeks(3);                   // 2012-02-03 00:00:00
echo $dt->addHours(24);                  // 2012-02-04 00:00:00
echo $dt->addHour();                     // 2012-02-04 01:00:00
echo $dt->subHour();                     // 2012-02-04 00:00:00
echo $dt->subHours(24);                  // 2012-02-03 00:00:00
echo $dt->addMinutes(61);                // 2012-02-03 01:01:00
echo $dt->addMinute();                   // 2012-02-03 01:02:00
echo $dt->subMinute();                   // 2012-02-03 01:01:00
echo $dt->subMinutes(61);                // 2012-02-03 00:00:00
echo $dt->addSeconds(61);                // 2012-02-03 00:01:01
echo $dt->addSecond();                   // 2012-02-03 00:01:02
echo $dt->subSecond();                   // 2012-02-03 00:01:01
echo $dt->subSeconds(61);                // 2012-02-03 00:00:00   

日付比較

$current = Carbon::now();
$dt      = Carbon::now();
$dt = $dt->subHours(6);
echo $dt->diffInHours($current);         // -6
echo $current->diffInHours($dt);         // 6
$future = $current->addMonth();
$past   = $current->subMonths(2);
echo $current->diffInDays($future);      // 31
echo $current->diffInDays($past);        // -62

参考:https://scotch.io/tutorials/easier-datetime-in-laravel-and-php-with-carbon