根据日期格式格式化字符串

Question

有一个字符串：

$time = "2013-07-10T21:00:00.000";

如何将其转换为“2013-07-10 21:00:00”格式？

Answer 1

$time = strtotime("2013-07-10T21:00:00.000");
return strftime("%Y-%m-%d %H:%M:%S", $time);

Answer 2

$date = new \DateTime($time);
$date->format('Y-m-d H:i:s');

Answer 3

$time = "2013-07-10T21:00:00.000";
echo date("Y-i-d H:m:s",strtotime($time));