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 2018-8-21

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

if($time==""){

$time=time();

}

if($type==1){

return $this->year=date("y",$time); //返回两位的年份 18

}else{

return $this->year=date("Y",$time); //返回四位的年份 2018

}

}

//返回当前时间的月份 time：时间格式为时间 2018-8-21

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

if($time==""){

$time=time();

}

switch($type){

case 1:$this->month=date("n",$time);//返回格式 8

break;

case 2:$this->month=date("m",$time);//返回格式 08

break;

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

break;

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

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 2018-8-21

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

if($time==""){

$time=time();

}

if($type==1){

$this->day=date("d",$time);//返回格式 21

}else{

$this->day=date("j",$time);//返回格式 21

}

return $this->day;

}

//返回当前时间的小时 2018-08-21 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 2018-8-21 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;

}

}

?>

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