Are there any best practices for using date() and mktime() simultaneously in PHP for future or past date calculations?

When using date() and mktime() in PHP for future or past date calculations, it is important to ensure consistency in the parameters passed to each function. To calculate future or past dates accurately, mktime() can be used to generate a timestamp based on specific date and time components, which can then be formatted using date(). It is recommended to use mktime() to create the timestamp and then format it using date() to avoid inconsistencies in date calculations.

// Calculate a future date using mktime() and date()
$future_date = mktime(0, 0, 0, date("m") + 1, date("d"), date("Y")); // Get timestamp for next month
$formatted_date = date("Y-m-d", $future_date); // Format the timestamp as yyyy-mm-dd

echo "Future Date: " . $formatted_date;

// Calculate a past date using mktime() and date()
$past_date = mktime(0, 0, 0, date("m") - 1, date("d"), date("Y")); // Get timestamp for previous month
$formatted_past_date = date("Y-m-d", $past_date); // Format the timestamp as yyyy-mm-dd

echo "Past Date: " . $formatted_past_date;