How to calculate the difference between two dates using PHP?

php datetime datediff
gnanesh picture gnanesh · Mar 24, 2009 · Viewed 856k times · Source

I have two dates of the form:

Start Date: 2007-03-24 
End Date: 2009-06-26

Now I need to find the difference between these two in the following form:

2 years, 3 months and 2 days

How can I do this in PHP?

Answer

jurka picture jurka · Oct 13, 2010

I suggest to use DateTime and DateInterval objects.

$date1 = new DateTime("2007-03-24");
$date2 = new DateTime("2009-06-26");
$interval = $date1->diff($date2);
echo "difference " . $interval->y . " years, " . $interval->m." months, ".$interval->d." days "; 

// shows the total amount of days (not divided into years, months and days like above)
echo "difference " . $interval->days . " days ";

read more php DateTime::diff manual

From the manual:

As of PHP 5.2.2, DateTime objects can be compared using comparison operators. 

$date1 = new DateTime("now");
$date2 = new DateTime("tomorrow");

var_dump($date1 == $date2); // bool(false)
var_dump($date1 < $date2);  // bool(true)
var_dump($date1 > $date2);  // bool(false)

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