How can PHP be used to calculate the current week minus one?

To calculate the current week minus one in PHP, you can use the `strtotime` function to get the timestamp for the current date and then use the `date` function to format the date of the previous week. By subtracting 7 days from the current date, you can get the date of the previous week. 

$currentDate = strtotime('today');
$previousWeek = date('W', strtotime('-1 week', $currentDate));
echo "Current week minus one: " . $previousWeek;

Keywords

PHP date strtotime week calculation

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