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PHP中strtotime函数用法

Jun 13, 2016 am 11:15 AM
php strtotime function Can exist Bundle Replace with log time yes usage change

strtotime函数在php中是可以把日志转换成时间戳,他可以方便的让我们对日期时间分秒的计算,下面我来给各位介绍时strtotime函数用法,有需要的同学可参考。  

1.获取当前的时间的时间戳!

a.实用strtotime('now');来获取当前的时间戳!(因为PHP当前时间和真是时间相差8小时)

 代码如下 复制代码

1 echo date('Y-m-d H:i:s',strtotime('now')+8*60*60);
结果:2013-04-05 03:15:02

b.你也可以用time() 来直接获取!

 代码如下 复制代码


1 echo date('Y-m-d H:i:s',time()+8*60*60);
结果:2013-04-05 03:15:02

2.获取10天之后的时间戳:

使用方法:

 代码如下 复制代码
1 strtotime("+10 days")+8*60*60

输出10天后的日期,便于查看。

 代码如下 复制代码

1 echo date('Y-m-d H:i:s',strtotime("+10 days")+8*60*60);

结果:2013-04-15 03:15:02

3.获取一周的时间戳:


使用方法:

 代码如下 复制代码

1 strtotime("+1 week")+8*60*60

或者你使用上面按天来获取时间戳.写法如:

 代码如下 复制代码

strtotime("+7 days");

4.还可以获取指定几周几天几小时几秒来获取时间戳

使用方法:

 代码如下 复制代码

1 strtotime ("+1 week 2 days 4 hours 2 seconds")+8*60*60
1 echo date('Y-m-d H:i:s',strtotime ("+1 week 2 days 4 hours 2 seconds")+8*60*60);

结果:2013-04-12 07:15:04;

5.获取上周一或者下周四的时间戳:

使用方法:

a.获取上周一的时间戳:

 代码如下 复制代码

1 strtotime ("last Monday")+8*60*60
1 echo date('Y-m-d H:i:s',strtotime ("last Monday")+8*60*60);

结果:2013-04-01 08:00:00;


b.获取下周四的时间戳

 代码如下 复制代码

1 strtotime ("next Thursday")+8*60*60
1 echo date('Y-m-d H:i:s',strtotime ("next Thursday")+8*60*60);

结果:2013-04-11 08:00:00;


strtotime函数比较两个时间的大小


strtotime()函数对两个固定的时间进行比较,如下:
    1):定义两个固定的时间;

    2):通过strtotime()函数将固定时间转换成时间戳;

    3):对两个时间戳的值进行比较。

其实例代码如下:

 代码如下 复制代码

$time="2012年11月23日15时50时20秒";
$times="2013-01-14 09:09:09";
if(strtotime($time)-strtotime($times)  echo "时间:".$time." 早于时间:".$times;
}else{
 echo "时间:".$times." 早于时间:".$time;
}
echo "
它们相差的时间值是:".(strtotime($time)-strtotime($times))
?>

上面的代码运行结果如下:

时间:2012年11月23日15时50时20秒 早于时间:2013-01-14 09:09:09
它们相差的时间值是:-1358125749


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