PHP Time and date

 
   
  

  
    
   
echo date(‘Y-m-d H:i:s‘);
 
   
  

date_default_timezone_set (' PRC '); Set time zone
echo Date_default_timezone_get (); Gets the time zone information set by the server
Create function return timestamp mktime (1,2,22,1,5,2015)

 
   
  

  
    
   
echo mktime(1,2,22,1,5,2015).‘<br>‘;
  
    
   
echo date(‘Y-m-d H:i:s‘,1420390942);
 
   
  

time () Gets the timestamp of the current system,

 
   
  

  
    
   
echo time();
  
    
   
echo date(‘Y-m-d H:i:s‘,1431697515);
 
   
  

strtotime (' 1983-1-1 ')Timestamp of converting a date string to a number

  
 

   
  
 
   
 
   
$time=strtotime(‘1983-1-1‘);
 
   
echo $time.‘<br>‘;
 
   
echo date(‘Y年m月d日‘,410198400);
 
  
  
 

trtotime (' +2 Day ') returns the timestamp after 2 days

 
   
  

  
    
   
echo strtotime(‘+2 day‘).‘<br>‘;
  
    
   
echo date(‘Y-m-d H:i:s‘,1431871146);
 
   
  

Statistical message Time

  
 

   
  

  
 $time="2015-5-15 22:17:1";
   
  

  
 $t=strtotime($time);//输出$time的时间戳
   
  

  
 $now=time(); //输出现在时间的时间戳
   
  

  
 $rr=floor(($now-$t)/86400);//floor 表示取整数 $rr 表示现在距离留言时间的时间差为多少
   
  

  
 $hh=floor(($now-$t)/3600);
   
  

  
 $mm=floor(($now-$t)/60);
   
  

  
 $ss=floor($now-$t);
   
  

  
 if($rr>=30){
   
  

  
 echo "留言时间为：$time";
   
  

  
}else if($rr>=1){
   
  

  
echo $rr.‘天前‘;
   
  

  
 }else if($hh>=1){
   
  

  
echo $hh.‘小时前‘;
   
  

  
 }else if($mm>=1){
   
  

  
echo $mm.‘分钟前‘;
   
  

  
 }else{
   
  

  
echo $ss.‘秒前‘;
   
  

  
 }
  
 

Statistics for member registration information within 7 days select COUNT (*) from member where regtime between Strtotime ('-7 days ') and time ();





From for notes (Wiz)

PHP Time and date