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：

<?phpheader("Content-type: text/html; charset=utf8");date_default_timezone_set("Asia/Shanghai");   //设置时区function time_tran($the_time) {    $now_time = date("Y-m-d H:i:s", time());    //echo $now_time;    $now_time = strtotime($now_time);    $show_time = strtotime($the_time);    $dur = $now_time - $show_time;    if ($dur < 0) {        return $the_time;    } else {        if ($dur < 60) {            return $dur . '秒前';        } else {            if ($dur < 3600) {                return floor($dur / 60) . '分钟前';            } else {                if ($dur < 86400) {                    return floor($dur / 3600) . '小时前';                } else {                    if ($dur < 259200) {//3天内                        return floor($dur / 86400) . '天前';                    } else {                        return $the_time;                    }                }            }        }    }}echo time_tran("2014-7-8 19:22:01");?>

实例2：

<?php  function time_tranx($the_time){     $now_time = date("Y-m-d H:i:s",time()+8*60*60);     $now_time = strtotime($now_time);     $show_time = strtotime($the_time);     $dur = $now_time - $show_time;     if($dur < 0){          return $the_time;     }else{          if($dur < 60){           return $dur.'秒前';          }else{               if($dur < 3600){                return floor($dur/60).'分钟前';               }else{                    if($dur < 86400){                       return floor($dur/3600).'小时前';                    }else{                         if($dur < 259200){ //3天内                              return floor($dur/86400).'天前';                         }else{                              return $the_time;                         }                    }              }          }     }  }  echo time_tranx("2014-7-8 19:22:01");  ?>

实例3：

<?php  function format_date($time){      $t=time()-$time;  <span style="white-space:pre">    </span>//echo time();      $f=array(          '31536000'=>'年',          '2592000'=>'个月',          '604800'=>'星期',          '86400'=>'天',          '3600'=>'小时',          '60'=>'分钟',          '1'=>'秒'      );      foreach ($f as $k=>$v)    {          if (0 !=$c=floor($t/(int)$k)) {              return $c.$v.'前';          }      }  }  echo format_date("1404600000");  ?>

实例4：

<?php  function formatTime($date) {      $str = '';      $timer = strtotime($date);      $diff = $_SERVER['REQUEST_TIME'] - $timer;      $day = floor($diff / 86400);      $free = $diff % 86400;      if($day > 0) {          return $day."天前";      }else{          if($free>0){              $hour = floor($free / 3600);              $free = $free % 3600;                  if($hour>0){                      return $hour."小时前";                  }else{                      if($free>0){                          $min = floor($free / 60);                          $free = $free % 60;                          if($min>0){                              return $min."分钟前";                          }else{                              if($free>0){                                  return $free."秒前";                              }else{                                  return '刚刚';                              }                         }                      }else{                          return '刚刚';                      }                 }         }else{             return '刚刚';         }      }  }  echo formatTime("2014-7-8 19:22:01");  ?>

二、类的实现

<?php  /*  * author: china_skag  * time: 2014-07-08  * 发博时间计算(年，月，日，时，分，秒)  * $createtime 可以是当前时间  * $gettime 你要传进来的时间  */  class Mygettime{          function  __construct($createtime,$gettime) {              $this->createtime = $createtime;              $this->gettime = $gettime;      }      function getSeconds()      {              return $this->createtime-$this->gettime;          }      function getMinutes()         {         return ($this->createtime-$this->gettime)/(60);         }        function getHours()         {         return ($this->createtime-$this->gettime)/(60*60);         }        function getDay()         {          return ($this->createtime-$this->gettime)/(60*60*24);         }        function getMonth()         {          return ($this->createtime-$this->gettime)/(60*60*24*30);         }         function getYear()         {          return ($this->createtime-$this->gettime)/(60*60*24*30*12);         }         function index()         {              if($this->getYear() > 1)              {                   if($this->getYear() > 2)                      {                          return date("Y-m-d",$this->gettime);                          exit();                      }                  return intval($this->getYear())." 年前";                  exit();              }               if($this->getMonth() > 1)              {                  return intval($this->getMonth())." 月前";                  exit();              }               if($this->getDay() > 1)              {                  return intval($this->getDay())." 天前";                  exit();              }               if($this->getHours() > 1)              {                  return intval($this->getHours())." 小时前";                  exit();              }               if($this->getMinutes() > 1)              {                  return intval($this->getMinutes())." 分钟前";                  exit();              }             if($this->getSeconds() > 1)              {                  return intval($this->getSeconds()-1)." 秒前";                  exit();              }         }    }  //类的使用实例  /*  *  * 调用类输出方式  *  * $a = new Mygettime(time(),strtotime('-25 month'));  * echo iconv('utf-8', 'gb2312', $a->index())?iconv('utf-8', 'gb2312', $a->index()):iconv('utf-8', 'gb2312', '当前');  *  */

转载：http://blog.csdn.net/china_skag/article/details/37569505