CODEWITHSUNDEEP
phpdatetimedate
efritz
efritz

Reputation: 5203

Calculate total seconds in PHP DateInterval

What is the best way to calculate the total number of seconds between two dates? So far, I've tried something along the lines of: 

$delta   = $date->diff(new DateTime('now'));
$seconds = $delta->days * 60 * 60 * 24;

However, the days property of the DateInterval object seems to be broken in the current PHP5.3 build (at least on Windows, it always returns the same 6015 value). I also attempted to do it in a way which would fail to preserve number of days in each month (rounds to 30), leap years, etc:

$seconds = ($delta->s)
         + ($delta->i * 60)
         + ($delta->h * 60 * 60)
         + ($delta->d * 60 * 60 * 24)
         + ($delta->m * 60 * 60 * 24 * 30)
         + ($delta->y * 60 * 60 * 24 * 365);

But I'm really not happy with using this half-assed solution.

Upvotes: 124

Views: 92049

Answers (5)

migli
migli

Reputation: 3252

DateTime::diff returns a DateInterval object between 2 dates.

The DateInterval object gives all the informations (the number of days, hours, minutes, seconds).

Here's a sample code:

/**
 * intervalToSeconds
 *
 * @param  DateInterval $interval
 * @return int
 */
function intervalToSeconds(\DateInterval $interval) {
    return $interval->days * 86400 + $interval->h * 3600 + $interval->i * 60 + $interval->s;
}

$date_1 = new \DateTime('2021-03-03 05:59:19');
$date_2 = new \DateTime('now');
$interval = $date_1->diff($date_2);
echo intervalToSeconds($interval);

Upvotes: 9

dave1010
dave1010

Reputation: 15415

This function allows you to get the total duration in seconds from a DateInterval object

/**
 * @param DateInterval $dateInterval
 * @return int seconds
 */
function dateIntervalToSeconds($dateInterval)
{
    $reference = new DateTimeImmutable;
    $endTime = $reference->add($dateInterval);

    return $endTime->getTimestamp() - $reference->getTimestamp();
}

Upvotes: 52

hoofuz
hoofuz

Reputation: 59

static function getIntervalUnits($interval, $unit)
{
    // Day
    $total = $interval->format('%a');
    if ($unit == TimeZoneCalc::Days)
        return $total;
    //hour
    $total = ($total * 24) + ($interval->h );
    if ($unit == TimeZoneCalc::Hours)
        return $total;
    //min
    $total = ($total * 60) + ($interval->i );
    if ($unit == TimeZoneCalc::Minutes)
        return $total;  
    //sec
    $total = ($total * 60) + ($interval->s );
    if ($unit == TimeZoneCalc::Seconds)
        return $total;  

    return false;
}

Upvotes: 5

Ben
Ben

Reputation: 21249

Could you not compare the time stamps instead? 

$now = new DateTime('now');
$diff = $date->getTimestamp() - $now->getTimestamp()

Upvotes: 257

xil3
xil3

Reputation: 16439

You could do it like this:

$currentTime = time();
$timeInPast = strtotime("2009-01-01 00:00:00");

$differenceInSeconds = $currentTime - $timeInPast;

time() returns the current time in seconds since the epoch time (1970-01-01T00:00:00), and strtotime does the same, but based on a specific date/time you give.

Upvotes: 6

Related Questions