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我的页面从 mysql 数据库中的某个日期开始倒计时但是我不知道如何从数据库中获取日期到 javascript 上，我已经将日期回显到网页上，只需将其放入从那里开始的代码和倒计时。任何帮助都会很棒。谢谢

这是我的 javascript

function calcage(secs, num1, num2) {
s = ((Math.floor(secs/num1))%num2).toString();
if (LeadingZero && s.length < 2)
s = "0" + s;
return "<b>" + s + "</b>";
}


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' style='background-color:" + backcolor +
            "; color:" + forecolor + "'></span>");
}

if (typeof(BackColor)=="undefined")
BackColor = "white";
if (typeof(ForeColor)=="undefined")
ForeColor= "black";
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 = "";
 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 + 990;
 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);

这是我在 HTML 中的代码

<script language="JavaScript">
 TargetDate = "4/17/2012 23:41";
 BackColor = "white";
 ForeColor = "black";
 CountActive = true;
 CountStepper = -1;
 LeadingZero = true;
 DisplayFormat = "%%D%% Day, %%H%% Hour, %%M%% Minute, %%S%% Second ";
 FinishMessage = "Auction Ended";
 </script>
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1 回答 1

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您的 html 文件实际上应该是您首先调用查询的 php 文件：

$sql = "SELECT enddate FROM property WHERE propertyID = '1'"; 
$queryresult = mysql_query($sql) or die (mysql_error()); 
while ($row = mysql_fetch_assoc($queryresult))
{ $enddate=$row['enddate']; }

然后您将日期格式化为：

$enddate = date("j/m/Y H:i",strtotime($enddate));

然后在php代码之后你有你的html代码并将日期打印为：

<script language="JavaScript">
 TargetDate = "<?php echo $enddate; ?>";
 BackColor = "white";
 ForeColor = "black";
 CountActive = true;
 CountStepper = -1;
 LeadingZero = true;
 DisplayFormat = "%%D%% Day, %%H%% Hour, %%M%% Minute, %%S%% Second ";
 FinishMessage = "Auction Ended";
 </script>
于 2012-04-18T11:22:19.360 回答