FROM_UNIXTIME(时间戳,'%Y-%m-%d %H:%i:%S')
UNIX_TIMESTAMP('2016-07-17 23:59:59')
date("Y-m-d H:i:s",time())
strtotime('2016-07-17 23:59:59')
var da=new Date(时间戳,可为空); da.getFullYear()+'-'+(da.getMonth()+1)+'-'+da.getDate()+' '+da.getHours()+':'+da.getMinutes()+':'+da.getSeconds();
(new Date('2016/07/17 23:59:59')).getTime()