해당하는 날짜가 그달의 몇주째인지 계산 > php

<?
function toWeekNum($timestamp) {
	$w = date("w", mktime(0,0,0, date("n",$timestamp), 1, date("Y",$timestamp)));
	return ceil(($w + date("j",$timestamp) -1) / 7);
}

$weekNo = toWeekNum(time());
?>

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<?
$today_date = "2019-08-22";
$currentWeek = ceil((date("d",strtotime($today_date)) - date("w",strtotime($today_date)) - 1) / 7) + 1; // 해당월의 몇주차
?>