1、js的时间戳和php的时间戳转换需要注意的地方

JS时间戳为13位，包含3位毫秒的(最后面的三位)，而PHP只有10位不包含毫秒的。

2、以下是js代码

  <script type="text/javascript">  var Tday = new Array();  var daysms = 24 * 60 * 60 * 1000  var hoursms = 60 * 60 * 1000  var Secondms = 60 * 1000  var microsecond = 1000  var DifferHour = -1  var DifferMinute = -1  var DifferSecond = -1  function clock(key)    {     var time = new Date()     var hour = time.getHours()     var minute = time.getMinutes()     var second = time.getSeconds()     var timevalue = ""+((hour > 12) ? hour-12:hour)                     timevalue +=((minute < 10) ? ":0":":")+minute     timevalue +=((second < 10) ? ":0":":")+second     timevalue +=((hour >12 ) ? " PM":" AM")     var convertHour = DifferHour     var convertMinute = DifferMinute     var convertSecond = DifferSecond     var Diffms = Tday[key].getTime() - time.getTime()     DifferHour = Math.floor(Diffms / daysms)     Diffms -= DifferHour * daysms     DifferMinute = Math.floor(Diffms / hoursms)              Diffms -= DifferMinute * hoursms     DifferSecond = Math.floor(Diffms / Secondms)     Diffms -= DifferSecond * Secondms     var dSecs = Math.floor(Diffms / microsecond)          if(convertHour != DifferHour) a="<font class=f4_c><strong>"+DifferHour+"</strong></font>天";     if(convertMinute != DifferMinute) b="<font class=f4_c><strong>"+DifferMinute+"</strong></font>时";     if(convertSecond != DifferSecond) c="<font class=f4_c><strong>"+DifferSecond+"</strong></font>分"       d="<font class=f4_c><strong>"+dSecs+"</strong></font>秒"       if (DifferHour>0) {a=a}        else {a=''}     document.getElementById("leftTime"+key).innerHTML = a + b + c + d; //显示倒计时信息      }  </script>  

3、下面是模板文件

  {foreach from=$goods item=goods name=goods}

  <div id="leftTime{$smarty.foreach.goods.iteration}">  </div>

  <script type="text/javascript">  Tday[{$key}] = new Date("{$goods.gmt_end_time}");          window.setInterval(function(){clock({$key});}, 1000);       </script> 

  {/foreach}