php - 在 PHP 中获取星期几

Question

如果我有日期、月份和年份值，PHP 中有没有办法计算星期几？我不是指一周中的今天，而是过去未来的任何日期。

Answer 1

$day_of_week = date ('l', strtotime ('2012-06-11 13:43:23'));

Answer 2

echo date('l',strtotime('3 March 2013'));

returns Sunday.

echo date('l',mktime(0,0,0,$month,$day,$year));

returns appropriately for integer values of month, day and year.

Answer 3

You can do it like this.

echo date('l j \of F Y', strtotime('2013-03-02'));

If you only want the day of the week change the first argument to just l.

PHP Date documentation has a very good list of what information you can "extract" from the date.