How can DateTime objects be utilized in PHP to calculate date differences accurately?

To accurately calculate date differences in PHP, DateTime objects can be utilized. By creating two DateTime objects representing the two dates you want to compare, you can then use the diff() method to calculate the difference between them in days, months, years, etc. This method takes into account factors such as leap years and daylight saving time, providing a precise result. 

$date1 = new DateTime('2022-01-01');
$date2 = new DateTime('2022-03-15');

$interval = $date1->diff($date2);

echo $interval->format('%R%a days'); // Output: +73 days

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DateTime objects PHP calculate date differences

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