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PHP时间戳函数

Jun 13, 2016 am 09:43 AM
php unix world code function Will date time change

   1.PHP时间戳函数将日期转化为unix时间戳

  世界末日时间戳 PHP

 代码如下  

echo "世界末日时间戳为:".strtotime("2012-12-21")

  2.将时间戳转化为系统时间

 代码如下  


date('Y-m-d H:i:s',"1228348800");

  3.PHP时间戳函数获取英文文本日期时间 示例如下:

  便于比较,使用date将当时间戳与指定时间戳转换成系统时间

  (1)打印明天此时的时间戳strtotime(”+1 day”)

 代码如下  

//当前时间
echo date("Y-m-d H:i:s",time());
//明天此时时间
echo date("Y-m-d H:i:s",strtotime("+1 day"));

  (2)打印昨天此时的时间戳strtotime(”-1 day”)

 代码如下  

//当前时间
echo date("Y-m-d H:i:s",time()) ;
//指定时间
echo date("Y-m-d H:i:s",strtotime("-1 day"));

  (3)打印下个星期此时的时间戳strtotime("+1 week")

 代码如下  


//当前时间
echo date("Y-m-d H:i:s",time());
//下星期时间
echo date("Y-m-d H:i:s",strtotime("+1 week"));

  (4)打印上个星期此时的时间戳strtotime("-1 week")

 代码如下  

//当前时间
echo date("Y-m-d H:i:s",time());
//上个星期此时时间
echo date("Y-m-d H:i:s",strtotime("-1 week"));

  (5)打印指定下星期几的时间戳strtotime("next Thursday")

 代码如下  
//当前时间
echo date("Y-m-d H:i:s",time());
//下星期几时间
echo date("Y-m-d H:i:s",strtotime("next Thursday"));

  (6)打印指定上星期几的时间戳strtotime(”last Thursday”)

 代码如下  

//当前时间
echo date("Y-m-d H:i:s",time());
//指定时间
echo date("Y-m-d H:i:s",strtotime("last Thursday"));

  以上PHP时间戳函数示例可知,strtotime能将任何英文文本的日期时间描述解析为Unix时间戳,我们结合mktime()或date()格式化日期时间获取指定的时间戳,实现所需要的日期时间

  话说看到别人写的这么一个函数,测试了一下,有些小毛病:对于跨年日期,没有显示年份。修改如下

 代码如下  

function mdate($time = NULL) {
    $text = '';
    $time = $time === NULL || $time > time() ? time() : intval($time);
    $t = time() - $time; //时间差 (秒)
    $y = date('Y', $time)-date('Y', time());//是否跨年
    switch($t){
     case $t == 0:
       $text = '刚刚';
       break;
     case $t       $text = $t . '秒前'; // 一分钟内
      break;
     case $t       $text = floor($t / 60) . '分钟前'; //一小时内
      break;
     case $t       $text = floor($t / (60 * 60)) . '小时前'; // 一天内
      break;
     case $t       $text = floor($time/(60*60*24)) ==1 ?'昨天 ' . date('H:i', $time) : '前天 ' . date('H:i', $time) ; //昨天和前天
      break;
     case $t       $text = date('m月d日 H:i', $time); //一个月内
      break;
     case $t       $text = date('m月d日', $time); //一年内
      break;
     default:
      $text = date('Y年m月d日', $time); //一年以前
      break; 
    }
        
    return $text;
}

  ThinkPHP中:

  将写好的函数放到 Common 文件夹下。系统会自动加载的。

  放到这个common.php页里,common.php 固有格式,不要改名。

  模板中直接调用

 代码如下  

{$vo.time|mdate}

  例2,简单一些的

 代码如下  

function formatDate($sTime) {
 //sTime=源时间,cTime=当前时间,dTime=时间差
 $cTime  = time();
 $dTime  = $cTime - $sTime;
 $dDay  = intval(date("Ymd",$cTime)) - intval(date("Ymd",$sTime));
 $dYear  = intval(date("Y",$cTime)) - intval(date("Y",$sTime));
 if( $dTime   $dTime =  $dTime."秒前";
 }elseif( $dTime   $dTime =  intval($dTime/60)."分钟前";
 }elseif( $dTime >= 3600 && $dDay == 0  ){
  $dTime =  "今天".date("H:i",$sTime);
 }elseif($dYear==0){
  $dTime =  date("m-d H:i",$sTime);
 }else{
  $dTime =  date("Y-m-d H:i",$sTime);
 }
 return $dTime;
}

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