AM PM格式的两个日期变量之间的日期差异。

Question

可能重复：
Getting the difference between two time/dates using php?

我有两个日期变量 设$ = arrival_time的 “7:30”; $ departure_time =“8.30 PM”;

那么我怎样才能计算这两个变量之间的时差？

Answer 1

<?php 
$arrival_time="7.30 AM"; 
$departure_time="8.30 PM"; 

$d1= strtotime($arrival_time); 
$d2= strtotime($departure_time); 

$diff=$d2-$d1; 

//Print the difference in hours : minutes 
echo date("H:i",$diff); 
?> 

Answer 2

<?php 
$am = "7:30AM"; 
$pm = "8:30PM"; 
$minutes_diff = round(abs(strtotime($pm) - strtotime($am))/60);