Calculate Total Seconds in PHP Dateinterval

Calculate total seconds in PHP DateInterval

Could you not compare the time stamps instead?

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

Convert DateInterval object to seconds in php

There is a function format for this. But it wont return the number of seconds. To get number of seconds you use this technique

$seconds = abs($datetime1->getTimestamp()-$datetime2->getTimestamp());

If you really want to use $interval you need to calculate it.

$seconds = $interval->days*86400 + $interval->h*3600 
           + $interval->i*60 + $interval->s;

Here

• 86400 is the number of seconds in a day
• 3600 is the number of seconds in an hour
• 60 is the number of seconds in a minute

How to convert Php::DateInterval to seconds?

You could access the public properties of the DateInterval class and do some math on it:

$seconds = $d->s + ($d->i * 60) + ($d->h * 3600) + ($d->d * 86400) + ($d->m * 2592000); // and so on

but once we get into the months there will be variance by +/- 2 days unless we stick to an arbitrary definition of a month as 2592000 secs (30 days).

You can also use the difference of the two UNIX timestamps from the DateTime objects (but you will end up having problems with the dates being less than year of 1970):

$seconds = $end->getTimestamp() - $start->getTimestamp();

Get interval seconds between two datetime in PHP?

You can use strtotime() to do that:

$diff = strtotime('2009-10-05 18:11:08') - strtotime('2009-10-05 18:07:13')

A similar approach is possible with DateTime objects, e.g.

$date = new DateTime( '2009-10-05 18:07:13' );
$date2 = new DateTime( '2009-10-05 18:11:08' );

$diff = $date2->getTimestamp() - $date->getTimestamp();

Formatting DateInterval with huge seconds value

This can be achieved with DateTime class

Use:

echo secondsToTime(1640467);

18 days, 23 hours, 41 minutes and 7 seconds

Function:

function secondsToTime($seconds) {
    $dtF = new DateTime("@0");
    $dtT = new DateTime("@$seconds");
    return $dtF->diff($dtT)->format('%a days, %h hours, %i minutes and %s seconds');
}

sample demo

PHP DateInterval create split second (microsecond or milisecond) interval

There is a way to do this using DateInterval::createFromDateString:

$di = DateInterval::createFromDateString('123456 microseconds');
var_dump($di);

Output:

object(DateInterval)#1 (16) {
  ["y"]=>
  int(0)
  ["m"]=>
  int(0)
  ["d"]=>
  int(0)
  ["h"]=>
  int(0)
  ["i"]=>
  int(0)
  ["s"]=>
  int(0)
  ["f"]=>
  float(0.123456)
  ["weekday"]=>
  int(0)
  ["weekday_behavior"]=>
  int(0)
  ["first_last_day_of"]=>
  int(0)
  ["invert"]=>
  int(0)
  ["days"]=>
  bool(false)
  ["special_type"]=>
  int(0)
  ["special_amount"]=>
  int(0)
  ["have_weekday_relative"]=>
  int(0)
  ["have_special_relative"]=>
  int(0)
}

Demo on 3v4l.org

From the manual:

time

A date with relative parts. Specifically, the relative formats supported by the parser used for strtotime() and DateTime will be used to construct the DateInterval.

Covert time duration format %h%m%s to seconds

Your "1h1m1s" format looks pretty compatible with PHP's DateInterval class. You could construct one and then use this answer to calculate the seconds.

For example, you just need to uppercase the letters in "1h1m1s", then prefix it with "PT" to make it an interval spec.

/**
 * From https://stackoverflow.com/a/25149337/283366, please upvote it
 * @param DateInterval $dateInterval
 * @return int seconds
 */
function dateIntervalToSeconds($dateInterval)
{
    $reference = new DateTimeImmutable;
    $endTime = $reference->add($dateInterval);

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

$interval = new DateInterval('PT' . strtoupper($duration));
$seconds = dateIntervalToSeconds($interval);

Demo ~ https://3v4l.org/UaEYB

get php DateInterval in total 'minutes'

abs((new \DateTime("48 hours"))->getTimestamp() - (new \DateTime)->getTimestamp()) / 60

That's the easiest way to get the difference in minutes between two DateTime instances.

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