How can the mktime function in PHP be used to accurately calculate the previous month's date?

To accurately calculate the previous month's date using the mktime function in PHP, you can use the current date as a reference point and then subtract the number of days in the current month to get the last day of the previous month. From there, you can easily calculate the date of the previous month. 

$currentMonth = date('m');
$currentYear = date('Y');

// Get the last day of the previous month
$lastDayOfPrevMonth = date('t', mktime(0, 0, 0, $currentMonth, 0, $currentYear));

// Calculate the previous month's date
$prevMonthDate = date('Y-m-d', mktime(0, 0, 0, $currentMonth - 1, $lastDayOfPrevMonth, $currentYear));

echo $prevMonthDate;

Keywords

mktime PHP calculate previous month date

Related Questions