php calculate date difference
//get Date diff as intervals $d1 = new DateTime("2018-01-10 00:00:00"); $d2 = new DateTime("2019-05-18 01:23:45"); $interval = $d1->diff($d2); $diffInSeconds = $interval->s; //45 $diffInMinutes = $interval->i; //23 $diffInHours = $interval->h; //8 $diffInDays = $interval->d; //21 $diffInMonths = $interval->m; //4 $diffInYears = $interval->y; //1 //or get Date difference as total difference $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