<?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;  
 }
}
?>