做到这一点的***方法是最有可能使用strtotime将它们转换为时间戳，然后进行加法运算:

The best way to do this is most likely to use strtotime to convert them to timestamps and then do the adding together:

$o = strtotime($time1)+strtotime($time2);

如果我没记错的话，strtotime确实支持这种格式.

If I remember right strtotime does support this format.

否则，您需要自己将其过滤掉.

Otherwise you will need to filter it out yourself.