Question

date("Y-m-d",strtotime($cutDate,"+1 month"));

echo "<br>定义的时间".$cutDate;
echo "<br>定义的时间+1 ".date("Y-m-d",strtotime($cutDate,"+1 month"));为什么还是显示的当前时间，求解！

Answer 1

date("Y-m-d",strtotime($cutDate,"+1 month"));改为 date("Y-m-d",strtotime($cutDate."+1 month"));

Answer 2

echo date("Y-m-d",strtotime("+5 day",strtotime($starttime))); //$starttime开始时间 ，+5添加时间，返回就是 -5

Answer 3

echo date("Y-m-d",strtotime("+1 month"));