date_diff()期望参数1为DateTimeInterface,给定字符串

Question

我遇到了这个问题,我不知道该怎么做......他们有相同的格式

$ date_expire ='2014-08-06 00:00:00';

$ date1 = date("Ymd G:i:s"); $ date2 = date_create($ date_expire);

$ diff = date_diff($ date1,$ date2); //这行有误

Answer 1

因为你传递字符串而date_diff需要datetime对象,

$date_expire = '2014-08-06 00:00:00';    
$date = new DateTime($date_expire);
$now = new DateTime();

echo $date->diff($now)->format("%d days, %h hours and %i minuts");

演示.