我想把我的字符串dd/mm/yyy转换成yyyy/mm/dd


I want to reverse my string as dd/mm/yyy to yyyy/mm/dd

我需要将日期从10/21/2016更改为2016/10/21我怎么可能做到呢?

echo date('Y/m/d', strtotime('10/21/2016'));

use DateTime class

$date = new DateTime('10/21/2016');
echo $date->format('Y/m/d');