PHP时间类完整实例(非常实用)


            本文实例讲述了PHP时间类。分享给大家供大家参考，具体如下：





<?php

header("Content-type:text/html;Charset=utf-8");

class time{

 private $year;//年

 private $month;//月

 private $day;//天

 private $hour;//小时

 private $minute;//分钟

 private $second;//秒

 private $microtime;//毫秒

 private $weekday;//星期

 private $longDate;//完整的时间格式

 private $diffTime;//两个时间的差值

 //返回年份 time：时间格式为时间戳  2013-3-27

 function getyear($time="",$type=""){

 if($time==""){

  $time=time();

 }

 if($type==1){

  return $this->year=date("y",$time); //返回两位的年份 13

 }else{

  return $this->year=date("Y",$time); //返回四位的年份 2013

 }

 }

 //返回当前时间的月份 time：时间格式为时间戳 2013-3-27

 function getmonth($time="",$type=""){

 if($time==""){

  $time=time();

 }

 switch($type){

  case 1:$this->month=date("n",$time);//返回格式 3

   break;

  case 2:$this->month=date("m",$time);//返回格式 03

   break;

  case 3:$this->month=date("M",$time);//返回格式 Mar

   break;

  case 4:$this->month=date("F",$time);//返回格式 March

   break;

  default:$this->month=date("n",$time);

 }

 return $this->month; 

 }

 //返回当前时间的天数 time：时间格式为时间戳 2013-3-4 

 function getday($time="",$type=""){

 if($time==""){

  $time=time();

 }

 if($type==1){

  $this->day=date("d",$time);//返回格式 04

 }else{

  $this->day=date("j",$time);//返回格式 4

 }

 return $this->day;

 }

 //返回当前时间的小时  2010-11-10 1:19:21 20:19:21 

 function gethour($time="",$type=""){

 if($time==""){

  $time=time();

 } 

 switch($type){

  case 1:$this->hour=date("H",$time);//格式： 1 20

   break;

  case 2:$this->hour=date("h",$time);//格式  01 08

   break;

  case 3:$this->hour=date("G",$time);//格式  1 20

   break;

  case 4:$this->hour=date("g",$time);//格式  1 8

   break; 

  default :$this->hour=date("H",$time);

 }

 return $this->hour;

 }

 //返回当前时间的分钟数 1:9:18  

 function getminute($time="",$type=""){

 if($time==""){

  $time=time();

 }

 $this->minute=date("i",$time); //格式  09

 return $this->minute;

 }

 //返回当前时间的秒数  20:19:01

 function getsecond($time="",$type=""){

 if($time==""){

  $time=time();

 }

 $this->second=date("s",$time); //格式  01

 return $this->second;

 }

 //返回当前时间的星期数 

 function getweekday($time="",$type=""){

 if($time==""){

  $time=time(); 

 }

 if($type==1){

  $this->weekday=date("D",$time);//格式  Sun

 }else if($type==2){

  $this->weekday=date("l",$time); //格式 Sunday

 }else{

  $this->weekday=date("w",$time);//格式 数字表示 0--6

 }

 return $this->weekday;

 }

 //比较两个时间的大小 格式 2013-3-4 8:4:3  

 function compare($time1,$time2){

 $time1=strtotime($time1);

 $time2=strtotime($time2);

 if($time1>=$time2){  //第一个时间大于等于第二个时间 返回1 否则返回0

  return 1;

 }else{

  return -1;

 }

 }

 //比较两个时间的差值

 function diffdate($time1="",$time2=""){

 //echo $time1.'------'.$time2.'<br>';

 if($time1==""){

  $time1=date("Y-m-d H:i:s"); 

 }

 if($time2==""){ 

  $time2=date("Y-m-d H:i:s"); 

 }

 $date1=strtotime($time1);

 $date2=strtotime($time2);

 if($date1>$date2){

  $diff=$date1-$date2; 

 }else{

  $diff=$date2-$date1;

 }

 if($diff>=0){

  $day=floor($diff/86400);

  $hour=floor(($diff%86400)/3600);

  $minute=floor(($diff%3600)/60);

  $second=floor(($diff%60));

  $this->diffTime='相差'.$day.'天'.$hour.'小时'.$minute.'分钟'.$second.'秒'; 

 }

 return $this->diffTime;

 }

 //返回 X年X月X日

 function buildDate($time="",$type=""){

 if($type==1){   

  $this->longDate = $this->getyear($time) . '年' . $this->getmonth($time) . '月' . $this->getday($time) . '日';  

 }else{

  $this->longDate = $this->getyear($time) . '年' . $this->getmonth($time) . '月' . $this->getday($time) . '日'.$this->gethour($time).':'.$this->getminute($time).':'.$this->getsecond($time);  

 }

 return $this->longDate;  

 }

}

?>







希望本文所述对大家PHP程序设计有所帮助。