public function getDate($params = [], $format = 'Y-m-d')
	{
		foreach ($params as $k => $v) {
			$$k = $v;
		}

		if (!isset($min_year)) {
			$min_year = date('Y') - 2;
		}
		
		if (!isset($max_year)) {
			$max_year = date('Y');
		}

		if (!isset($min_month)) {
			$min_month = 1;
		}
		
		if (!isset($max_month)) {
			$max_month = 12;
		}
		
		// Pick a random year and month within the valid ranges.
		$rand_year	= rand($min_year, $max_year);
		$rand_month	= rand($min_month, $max_month);

		// Create a date object using the first day of this random month/year.
		$date = DateTime::createFromFormat('Y-m-d', join('-', [$rand_year, $rand_month, '01']));
		
		// How many days in this random month?
		$days_in_month = $date->format('t');

		// Pick a day of the month.
		$rand_day = rand(1, $days_in_month);
		
		return DateTime::createFromFormat('Y-m-d', join('-', [$rand_year, $rand_month, $rand_day]))->format($format);
	}