how to calculate date difference in php laravel code example

Example 1: laravel between dates

$from = date('2018-01-01');
$to = date('2018-05-02');

Reservation::whereBetween('reservation_from', [$from, $to])->get();

Example 2: how to calculate date difference between two dates in laravel

//How to calculate date different between two dates in larevel
// METHOD-1
$date1 = new DateTime("2018-01-10 00:00:00");
$date2 = new DateTime("2019-05-18 01:23:45");
$difference = $date1->diff($date2);
$diffInSeconds = $difference->s; //45
$diffInMinutes = $difference->i; //23
$diffInHours   = $difference->h; //8
$diffInDays    = $difference->d; //21
$diffInMonths  = $difference->m; //4
$diffInYears   = $difference->y; //1

//or get Date difference as total difference
//METHOD-2
$d1 = strtotime("2018-01-10 00:00:00");
$d2 = strtotime("2019-05-18 01:23:45");
$totalSecondsDiff = abs($d1-$d2); //42600225
$totalMinutesDiff = $totalSecondsDiff/60; //710003.75
$totalHoursDiff   = $totalSecondsDiff/60/60;//11833.39
$totalDaysDiff    = $totalSecondsDiff/60/60/24; //493.05
$totalMonthsDiff  = $totalSecondsDiff/60/60/24/30; //16.43
$totalYearsDiff   = $totalSecondsDiff/60/60/24/365; //1.35