分享3个php获取日历的函数

提供一个日期,获取这个日期的星期对应日历列表,键为星期标示

$month_date = 2015-09-25;
$start_time = strtotime($month_date);
$start_week = date(w, $start_time);
$total_month_day = date(t, $start_time);

$weeks_in_month = ceil(($start_week $total_month_day)/7);

$month_day_arr = [];
$start_month_day = 1;
for($i=0;$i