如何计算给定的月份和年份

Question

我有两个字符串，如下所示。

我要如何在PHP它们之间的区别？

我试过下面

<?php echo date_diff(date_create($experience[$i]->StartWork),date_create($experience[$i]->EndWork))->format("%a days"); ?> 

Answer 1

代码，你可以简单地做这

<?php 
$date1 = "may 1994"; 
$date2 = "august 1997"; 
$diff = strtotime($date2)-strtotime($date1); 
$days = $diff/(60*60*24*1); 
echo "days :". $days; 
?> 

演示：https://eval.in/852242

Answer 2

$date1 = new DateTime("may 1994"); //$experience[$i]->StartWork 
$date2 = new DateTime("august 1997"); //$experience[$i]->EndWork 
$interval = $date1->diff($date2); 


echo "days diff = " . $interval->days ;