php时间戳转换代码详解

strtotime
(date()) 
date("Y-m-d H:i",$unixtime)

$todaytime=strtotime(“today”)

date("Y-m-d H:i",$todaytime)

class SaonekController extends Controller { 

 public function index

Action

(){ 

/

strtotime() /     
 $time = time();//

  $nowtime = date('Y-m-d H:i:s',$time);//

$oldtime = '2010-11-10 22:19:21';     
$catime = strtotime($oldtime);//

$nowtimes = date('Y-m-d H:i:s',$catime);//

  echo $nowtimes; } } ?>

/时间转换函数/function transTime($ustime) {       
$ytime = date("Y-m-d H:i",$ustime);        
$rtime = date("n月j日 H:i",$ustime);       
$htime = date("H:i",$ustime);       
$time = time() - $ustime;       
$todaytime = strtotime("today");       
$time1 = time() - $todaytime;               
if($time < 60){           
$str = '刚刚';       
}else if($time < 60  60){
$min = floor($time/60);           
$str = $min.'分钟前';        
}else if($time < $time1){            
$str = '今天'.$htime;       
}else{           
$str = $rtime;  
}        
return $str; 
}

strtotime(”+1 day“)

echo date(”Y-m-d H:i:s”,time())

2009-01-22 09:40:25

echo date(”Y-m-d H:i:s”,strtotime(”+1 day”))

2009-01-23 09:40:25

PHP时间戳strtotime(”-1 day“) 
当前时间echo date(”Y-m-d H:i:s”,time()) 
结果2009-01-22 09:40:25 
指定时间echo date(”Y-m-d H:i:s”,strtotime(”-1 day”)) 
结果2009-01-21 09:40:25

strtotime(”+1 week“) 
当前时间echo date(”Y-m-d H:i:s”,time()) 
结果2009-01-22 09:40:25 
指定时间echo date(”Y-m-d H:i:s”,strtotime(”+1 week”)) 
结果2009-01-29 09:40:25

strtotime(”-1 week“) 
当前时间echo date(”Y-m-d H:i:s”,time()) 
结果2009-01-22 09:40:25 
指定时间echo date(”Y-m-d H:i:s”,strtotime(”-1 week”)) 
结果2009-01-15 09:40:25

strtotime(”next Thursday“) 
当前时间echo date(”Y-m-d H:i:s”,time()) 
结果2009-01-22 09:40:25 
指定时间echo date(”Y-m-d H:i:s”,strtotime(”next Thursday”)) 
结果2009-01-29 00:00:00

strtotime(”last Thursday“) 
当前时间echo date(”Y-m-d H:i:s”,time()) 
结果2009-01-22 09:40:25 
指定时间echo date(”Y-m-d H:i:s”,strtotime(”last Thursday”)) 
结果2009-01-15 00:00:00