我正在尝试基于PHP变量编写一个JS计数计时器(它将计数到无穷大)。不幸的是,这个变量是不可编辑的(一旦我得到它就能做到这一点,但不能改变我得到的形式,因为它来自数据库软件写入,我无法更改软件)。我得到的只是秒(用户加入了多少秒,等等),并希望以(X天,X小时,X分钟,X秒)的格式显示。
我已经有了计时器和PHP代码的代码,但问题是解决方案的最佳方法是什么。我是否尝试在PHP中使用秒进入日期,然后让JS完全休息,或者我更换JS以便接受秒,然后进行倒计时。除此之外,我该怎么做?
我为柜台提供的代码:
文档中的JS,传入变量,以便PHP可以轻松地更改这些:
<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>
如上所述的.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);
答案 0 :(得分:1)
正如评论中所建议的那样,我使用了PHP。最终得到它,通过:
从数据库中获取值并将其存储在$ uptime内(以秒为单位)。
$uptime = (time() - $uptime);
$uptime = date("m/d/Y H:i:s",$uptime);
然后我使用日期函数更改它以适应JS代码并使用新的$ uptime变量输出它:
<script type="text/javascript" language="JavaScript">
TargetDate = "<?php echo $uptime; ?>";
CountActive = true;
</script>
<script type="text/javascript" language="JavaScript" src="js/time.js"></script>
这确保日期以正确的格式输出,适合JS。