PHP calculates several just, several hours ago, a few days ago a few functions, class sharing

  This article mainly introduces PHP calculation time several just, a few hours ago, a few days ago a few functions, class sharing, need friends can refer to the following

One, the function implementation Instance 1:     The code is as follows: function Time_tran ($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 <) {  & nbsp  return $dur. ' seconds ago ';    }else{     if ($dur < 3600) {      return floor ($dur/60). ' Minutes ago ';      }else{      if ($dur < 86400) {       return floor ($dur/3600). ' Hours ago ';      }else{       if ($dur < 259200) {//3 days         return floor ($dur/86400). ' Days ago ';        }else{        return $the _time        }      } &nbsp   Instance 2: Code is as follows: <?php function Format_date ($time) {  &nbsP $t =time ()-$time;     $f =array (        ' 31536000 ' => ' year ',       ' 2592000 ' => ' month ', &N Bsp       ' 604800 ' => ' Week ',         ' 86400 ' => ' Day ',       ' 3600 ' =&G t; ' Hours ',         ' => ' minutes ',       ' 1 ' => ' sec '    ;     foreach ($f as $k => $v)    {        if (0!= $c =floor ($t/(int) $k)) {            return $c $v. ' Before ';        }    }?>   Instance 3:     Code as follows: function Formattime ($date) {$str = ' '; $timer = Strtotime ($date); $diff = $_server[' Request_time ']-$timer; $day = Floor ($diff/86400); $free = $diff% 86400; if ($day > 0) {return $day. " Days ago "; }else{if ($free >0) {$hour = floor ($free/3600); $free = $free% 3600; if ($hour >0) {return $hour. " Hours ago "; }else{if ($free >0) {$min = floor ($free/60); $free= $free% 60; if ($min >0) {return $min. " Minutes ago "; }else{if ($free >0) {return $free. " Seconds ago "; }else{return ' just ';}} }else{return ' just ';}} }else{return ' just ';}} {    instance 4:     Code is as follows: function Time_tran ($the _time) {$now _time = date ("Y-m-d h:i:s", Time () +8*60*60); &nb Sp $now _time = strtotime ($now _time); $show _time = strtotime ($the _time); $dur = $now _time-$show _time; if ($dur < 0) {return $the _time; }else{if ($dur < a) {    return $dur. ' seconds ago '; }else{  &nbs P if ($dur < 3600) {   return floor ($dur/60). ' Minutes ago ';     }else{   if ($dur < 86400) {   return floor ($dur/3600). ' Hours ago ';     }else{   if ($dur < 259200) {//3 days        return floor ($dur/8640 0). ' Days ago ';    }else{       return $the _time;             }}}     II, the implementation of the class   code is as follows: <?php/*  * Author:solon ring &Nbsp;* time:2011-11-02  * Time calculation (year, month, day, time, minute, second)  * $createtime can be the current time  * $gettime the time you want to send in  */  C Lass mygettime{          function  __construct ($createtime, $gettime) {            $this->createtime = $createtime;             $this->gettime = $gettime;    }       function getseconds ()     {            Retur n $this->createtime-$this->gettime;        }       function getminutes ()        {       return ($this->createtime-$this->gettime)/(60);                 function getHours ()        {    &N Bsp  return ($this->createtime-$this->gettime)/(60*60);       &NBSP}         function getday ()       {        return ($this->createtime-$this->gettime)/(60*60*24);     & nbsp &NBSP}         function getmonth ()        {        return ($ this->createtime-$this->gettime)/(60*60*24*30);       &NBSP,          function getyear ()        {  &NBS P     return ($this->createtime-$this->gettime)/(60*60*24*30*12);                  function index ()        {            if ($this->getyear () > 1)             {    &NBS P            if ($this->getyear () > 2)               & nbsp     {       ,                 return date ("y-m-d",$this->gettime);                         exit ();                                   & nbsp Return Intval ($this->getyear ()). "Years ago";                 exit ();                            if ($this->getmonth () > 1)             {                return intval ($this->getmonth ()). " Months ago ";                 exit ();                            if ($this->getday () & Gt 1             {                Intval ($this ->getday ()). "Days Ago";             &NBSP   Exit ();                            if ($this->gethours () > 1)             {                return intval ($this->gethours ()). " Hours ago ";                 exit ();                            if ($this->getminutes () > 1)             {                return INTV Al ($this->getminutes ()). "Minutes Ago";                 exit ();                          if ($this->getseconds () > 1             {                Intval ($thi S->getseconds ()-1). "Seconds Ago";                 exit ();                     &NBSP}    }//class usages/*  *   * Invoke class Output mode  *  * $a = new Mygettime (Time (), Strtotime (' -25 month '));  * echo iconv (' Utf-8 ', ' gb2312 ', $a->index ())? Iconv (' Utf-8 ', ' gb2312 ', $a->index ()): Iconv (' utf-8 ', ' gb2312 ', ' current ');  *  */