What are some best practices for handling date calculations and conversions in PHP to ensure accuracy and efficiency?

When handling date calculations and conversions in PHP, it is important to use the correct functions and formats to ensure accuracy and efficiency. One best practice is to always use the DateTime class for date manipulation as it provides a wide range of methods for working with dates. Additionally, make sure to set the correct timezone when working with dates to avoid any discrepancies.

// Example of handling date calculations and conversions in PHP using DateTime class

// Set the timezone
date_default_timezone_set('UTC');

// Create a DateTime object for the current date
$currentDate = new DateTime();

// Add 1 day to the current date
$currentDate->modify('+1 day');

// Format the date as a string
$formattedDate = $currentDate->format('Y-m-d');

echo $formattedDate;