How to increase time in php

How to increase time in php: first set the default time zone through "date_default_timezone_set"; then output tomorrow's time through "strtotime(' 1 day')"; finally modify the parameters to any number you want to increase.

php Add one day to a certain time? One hour? Time addition and subtraction

<?php
date_default_timezone_set(&#39;PRC&#39;); //默认时区
echo "今天:",date("Y-m-d",time()),"<br>";
echo "今天:",date("Y-m-d",strtotime("18 june 2008")),"<br>";
echo "昨天:",date("Y-m-d",strtotime("-1 day")),"<br>";
echo "明天:",date("Y-m-d",strtotime("+1 day")),"<br>";
echo "一周后:",date("Y-m-d",strtotime("+1 week")),"<br>";
echo "一周零两天四小时两秒后:",date("Y-m-d G:H:s",strtotime("+1 week 2 days 4 hours 2 seconds")), "<br>";
echo "下个星期四:",date("Y-m-d",strtotime("next Thursday")),"<br>";
echo "上个周一:".date("Y-m-d",strtotime("last Monday"))."<br>";
echo "一个月前:".date("Y-m-d",strtotime("last month"))."<br>";
echo "一个月后:".date("Y-m-d",strtotime("+1 month"))."<br>";
echo "十年后:".date("Y-m-d",strtotime("+10 year"))."<br>";
?>

//strtotime可以接受第二个参数，类型timestamp,为指定日期
echo date('Y-m-d', strtotime ("+1 day", strtotime('2011-11-01'))),"\n";

<?php
echo "今天:",date(&#39;Y-m-d H:i:s&#39;),"<br>";//输出当前时间
echo "明天:",date(&#39;Y-m-d H:i:s&#39;,strtotime(&#39;+1 day&#39;));//输出明天时间
//这里+1 day 可以修改参数1为任何想需要的数  day也可以改成year（年），month（月），hour（小时），minute（分），second（秒）
//如:
date(&#39;Y-m-d H:i:s&#39;,strtotime("+1 day +1 hour +1 minute");
?>

Note: This method was tried after 1970, which is the scope of application of timestamps.

<?php
//下面这些代码是一些常用的日期处理函数了，可以两个时间的日期加减，两日期之差,日期转换时间截等。
echo date(&#39;Y-m-d&#39;,strtotime(&#39;+1 d&#39;,strtotime(&#39;2009-07-08&#39;)));//日期天数相加函数
echo date("Y-m-d",&#39;1246982400&#39;);
echo &#39;<br>&#39;;
echo date("Y-m-d",&#39;1279123200&#39;);
die();
$d   =   "2009-07-08 10:19:00";
echo   date("Y-m-d",strtotime("$d   +1   day"));   //日期天数相加函数
function dateToTime($d){//把日期转换成时间堆截
    $year=((int)substr("$d",0,4));//取得年份
    $month=((int)substr("$d",5,2));//取得月份
    $day=((int)substr("$d",8,2));//取得几号
    return mktime(0,0,0,$month,$day,$year);
    }
$Date_1="2009-07-08";
echo $Date_1+1;
$Date_2="2009-06-08";
$Date_List_a1=explode("-",$Date_1);
$Date_List_a2=explode("-",$Date_2);
$d1=mktime(0,0,0,$Date_List_a1[1],$Date_List_a1[2],$Date_List_a1[0]);
$d2=mktime(0,0,0,$Date_List_a2[1],$Date_List_a2[2],$Date_List_a2[0]);
$Days=round(($d1-$d2)/3600/24);
echo "两日期之前相差有$Days 天";
?>

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