How can PHP developers improve the efficiency and elegance of their code when working with date calculations?

When working with date calculations in PHP, developers can improve efficiency and elegance by utilizing built-in functions like `DateTime` and `DateInterval` to handle date manipulations. This approach simplifies the code, reduces the chance of errors, and improves readability. 

// Calculate the difference between two dates in days
$startDate = new DateTime('2022-01-01');
$endDate = new DateTime('2022-01-31');
$interval = $startDate->diff($endDate);
echo $interval->days;

Keywords

DateTime strtotime date_format date_diff timezone

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