我正在尝试基于 PHP 变量编写一个 JS 计数计时器(只会计数到无穷大)。不幸的是,该变量是不可编辑的(一旦我得到它就可以对它做一些事情,但不能改变我得到的形式,因为它来自数据库软件写入,我不能改变软件)。我得到的只是秒数(用户访问的东西是多少秒前,等等),并且希望它以(X 天,X 小时,X 分钟,X 秒)的格式显示。
我已经有了计时器代码和 PHP 代码,但是问题是解决方案的最佳方法是什么。我是否尝试在 PHP 中将秒数转换为日期,然后让 JS 完成所有休息,或者我是否更改 JS 以便它接受秒数,然后进行倒计时。除了这个,我该怎么做?
我的柜台代码:
JS 在文档中,传入变量以便 PHP 可以轻松更改这些:
<script type="text/javascript" language="JavaScript">
TargetDate = "09/21/2012 5:00";
CountActive = true;
</script>
然后(包括所有计数器代码):
<script type="text/javascript" language="JavaScript" src="js/time.js"></script>
和上面提到的 .js 文件:
function calcage(secs, num1, num2) {
s = ((Math.floor(secs/num1))%num2).toString();
if (LeadingZero && s.length < 2)
s = "0" + s;
return s;
}
function CountBack(secs) {
if (secs < 0) {
document.getElementById("cntdwn").innerHTML = FinishMessage;
return;
}
DisplayStr = DisplayFormat.replace(/%%D%%/g, calcage(secs,86400,100000));
DisplayStr = DisplayStr.replace(/%%H%%/g, calcage(secs,3600,24));
DisplayStr = DisplayStr.replace(/%%M%%/g, calcage(secs,60,60));
DisplayStr = DisplayStr.replace(/%%S%%/g, calcage(secs,1,60));
document.getElementById("cntdwn").innerHTML = DisplayStr;
if (CountActive)
setTimeout("CountBack(" + (secs+CountStepper) + ")", SetTimeOutPeriod);
}
function putspan(backcolor, forecolor) {
document.write("<span id='cntdwn'></span>");
}
if (typeof(BackColor)=="undefined")
BackColor = "white";
if (typeof(ForeColor)=="undefined")
ForeColor= "#2A8827";
if (typeof(TargetDate)=="undefined")
TargetDate = "12/31/2020 5:00 AM";
if (typeof(DisplayFormat)=="undefined")
DisplayFormat = "%%D%% days, %%H%% hours, %%M%% minutes, %%S%% seconds.";
if (typeof(CountActive)=="undefined")
CountActive = true;
if (typeof(FinishMessage)=="undefined")
FinishMessage = "no data";
if (typeof(CountStepper)!="number")
CountStepper = +1;
if (typeof(LeadingZero)=="undefined")
LeadingZero = true;
CountStepper = Math.ceil(CountStepper);
if (CountStepper == 0)
CountActive = false;
var SetTimeOutPeriod = (Math.abs(CountStepper)-1)*1000 + 1000;
putspan(BackColor, ForeColor);
var dthen = new Date(TargetDate);
var dnow = new Date();
if(CountStepper>0)
ddiff = new Date(dnow-dthen);
else
ddiff = new Date(dthen-dnow);
gsecs = Math.floor(ddiff.valueOf()/1000);
CountBack(gsecs);