PHP把时间转换成几分钟前、几小时前、几天前的几个函数、类分享

这篇文章主要介绍了php计算时间几分钟前、几小时前、几天前的几个函数、类分享,需要的朋友可以参考下
一、函数实现
实例1：

[php] view plain copy

1. <?php
2. header("Content-type: text/html; charset=utf8");
3. date_default_timezone_set("Asia/Shanghai");   //设置时区
4. function time_tran($the_time) {
5.     $now_time = date("Y-m-d H:i:s", time());
6.     //echo $now_time;
7.     $now_time = strtotime($now_time);
8.     $show_time = strtotime($the_time);
9.     $dur = $now_time - $show_time;
10.     if ($dur < 0) {
11.         return $the_time;
12.     } else {
13.         if ($dur < 60) {
14.             return $dur . '秒前';
15.         } else {
16.             if ($dur < 3600) {
17.                 return floor($dur / 60) . '分钟前';
18.             } else {
19.                 if ($dur < 86400) {
20.                     return floor($dur / 3600) . '小时前';
21.                 } else {
22.                     if ($dur < 259200) {//3天内
23.                         return floor($dur / 86400) . '天前';
24.                     } else {
25.                         return $the_time;
26.                     }
27.                 }
28.             }
29.         }
30.     }
31. }
34. echo time_tran("2014-7-8 19:22:01");
35. ?>

实例2：

[php] view plain copy

1. <?php
2. function time_tranx($the_time){
3.    $now_time = date("Y-m-d H:i:s",time()+8*60*60);
4.    $now_time = strtotime($now_time);
5.    $show_time = strtotime($the_time);
6.    $dur = $now_time - $show_time;
7.    if($dur < 0){
8.         return $the_time;
9.    }else{
10.         if($dur < 60){
11.          return $dur.'秒前';
12.         }else{
13.              if($dur < 3600){
14.               return floor($dur/60).'分钟前';
15.              }else{
16.                   if($dur < 86400){
17.                      return floor($dur/3600).'小时前';
18.                   }else{
19.                        if($dur < 259200){ //3天内
20.                             return floor($dur/86400).'天前';
21.                        }else{
22.                             return $the_time;
23.                        }
24.                   }
25.             }
26.         }
27.    }
28. }
29. echo time_tranx("2014-7-8 19:22:01");
30. ?>

实例3：

[php] view plain copy

1. <?php
2. function format_date($time){
3.     $t=time()-$time;
4. <span style="white-space:pre">    </span>//echo time();
5.     $f=array(
6.         '31536000'=>'年',
7.         '2592000'=>'个月',
8.         '604800'=>'星期',
9.         '86400'=>'天',
10.         '3600'=>'小时',
11.         '60'=>'分钟',
12.         '1'=>'秒'
13.     );
14.     foreach ($f as $k=>$v)    {
15.         if (0 !=$c=floor($t/(int)$k)) {
16.             return $c.$v.'前';
17.         }
18.     }
19. }
20. echo format_date("1404600000");
21. ?>

实例4：

[php] view plain copy

1. <?php
2. function formatTime($date) {
3.     $str = '';
4.     $timer = strtotime($date);
5.     $diff = $_SERVER['REQUEST_TIME'] - $timer;
6.     $day = floor($diff / 86400);
7.     $free = $diff % 86400;
8.     if($day > 0) {
9.         return $day."天前";
10.     }else{
11.         if($free>0){
12.             $hour = floor($free / 3600);
13.             $free = $free % 3600;
14.                 if($hour>0){
15.                     return $hour."小时前";
16.                 }else{
17.                     if($free>0){
18.                         $min = floor($free / 60);
19.                         $free = $free % 60;
20.                         if($min>0){
21.                             return $min."分钟前";
22.                         }else{
23.                             if($free>0){
24.                                 return $free."秒前";
25.                             }else{
26.                                 return '刚刚';
27.                             }
28.                        }
29.                     }else{
30.                         return '刚刚';
31.                     }
32.                }
33.        }else{
34.            return '刚刚';
35.        }
36.     }
37. }
38. echo formatTime("2014-7-8 19:22:01");
39. ?>

二、类的实现

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1. <?php
2. /*
3.  * author: china_skag
4.  * time: 2014-07-08
5.  * 发博时间计算(年，月，日，时，分，秒)
6.  * $createtime 可以是当前时间
7.  * $gettime 你要传进来的时间
8.  */
9. class Mygettime{
10.         function  __construct($createtime,$gettime) {
11.             $this->createtime = $createtime;
12.             $this->gettime = $gettime;
13.     }
14.     function getSeconds()
15.     {
16.             return $this->createtime-$this->gettime;
17.         }
18.     function getMinutes()
19.        {
20.        return ($this->createtime-$this->gettime)/(60);
21.        }
22.       function getHours()
23.        {
24.        return ($this->createtime-$this->gettime)/(60*60);
25.        }
26.       function getDay()
27.        {
28.         return ($this->createtime-$this->gettime)/(60*60*24);
29.        }
30.       function getMonth()
31.        {
32.         return ($this->createtime-$this->gettime)/(60*60*24*30);
33.        }
34.        function getYear()
35.        {
36.         return ($this->createtime-$this->gettime)/(60*60*24*30*12);
37.        }
38.        function index()
39.        {
40.             if($this->getYear() > 1)
41.             {
42.                  if($this->getYear() > 2)
43.                     {
44.                         return date("Y-m-d",$this->gettime);
45.                         exit();
46.                     }
47.                 return intval($this->getYear())." 年前";
48.                 exit();
49.             }
50.              if($this->getMonth() > 1)
51.             {
52.                 return intval($this->getMonth())." 月前";
53.                 exit();
54.             }
55.              if($this->getDay() > 1)
56.             {
57.                 return intval($this->getDay())." 天前";
58.                 exit();
59.             }
60.              if($this->getHours() > 1)
61.             {
62.                 return intval($this->getHours())." 小时前";
63.                 exit();
64.             }
65.              if($this->getMinutes() > 1)
66.             {
67.                 return intval($this->getMinutes())." 分钟前";
68.                 exit();
69.             }
70.            if($this->getSeconds() > 1)
71.             {
72.                 return intval($this->getSeconds()-1)." 秒前";
73.                 exit();
74.             }
75.        }
76.   }
77. //类的使用实例
78. /*
79.  *
80.  * 调用类输出方式
81.  *
82.  * $a = new Mygettime(time(),strtotime('-25 month'));
83.  * echo iconv('utf-8', 'gb2312', $a->index())?iconv('utf-8', 'gb2312', $a->index()):iconv('utf-8', 'gb2312', '当前');
84.  *
85.  */