<?php
//php的时间是以秒算。js的时间以毫秒算
date_default_timezone_set("Asia/Hong_Kong");//地区
//配置每天的活动时间段 $starttimestr = "09:00:00"; $endtimestr = "18:30:00"; $starttime = strtotime($starttimestr); $endtime = strtotime($endtimestr); $nowtime = time(); ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>PHP实时倒计时!</title> <script language="JavaScript"> <!-- // var EndTime=<?=$endtime*1000?>; var NowTime = new Date(); //计算出服务器和客户端的时间差。 var dTime = NowTime.getTime()-<?=$nowtime*1000?>; var runtimes = 0; function GetRTime(){ var NowTime = new Date(); var dTimeNew = NowTime.getTime()-<?=$nowtime*1000?>; var dTimesM = Math.abs(Math.floor((dTimeNew-runtimes*1000-dTime)/1000));//客户端时间和服务器当前时间的差 if (dTimesM>1) {//如果用户修改了客户端时间,就重新load本页 window.location.reload(); } var nMS = EndTime - NowTime.getTime()+dTime; var nH=Math.floor(nMS/(1000*60*60)) % 24; var nM=Math.floor(nMS/(1000*60)) % 60; var nS=Math.floor(nMS/1000) % 60; document.getElementById("RemainH").innerHTML=nH; document.getElementById("RemainM").innerHTML=nM; document.getElementById("RemainS").innerHTML=nS; if(nMS>5*59*1000&&nMS<=5*60*1000) { alert("还有最后五分钟!"); } runtimes++;
setTimeout("GetRTime()",1000); } window.onload=GetRTime; // --> </script> </head> <body> <h1><strong id="RemainH">XX</strong>:<strong id="RemainM">XX</strong>:<strong id="RemainS">XX</strong></h1> </body> </html>
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