What resources or functions in PHP can be utilized to handle date and time calculations accurately?

Handling date and time calculations accurately in PHP can be achieved by utilizing the DateTime class along with its methods for manipulation, comparison, and formatting of dates and times. This class provides a more object-oriented approach to working with dates and times, ensuring accurate calculations and avoiding common pitfalls that can occur with basic PHP functions like strtotime(). 

// Create DateTime objects for the current date and a specific date
$currentDate = new DateTime();
$specificDate = new DateTime('2022-01-01');

// Calculate the difference between the two dates
$interval = $currentDate->diff($specificDate);

// Output the difference in days
echo $interval->format('%a days');

Keywords

DateTime date_default_timezone_set date_create date_diff strtotime

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