如何将当前日期和时间放在 PHP Javascript 中的文本框中
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How to put current date and time inside textbox in PHP Javascript
提问by gimmigzgy
I am trying to put in my textbox the current time, with my preferred format (ex. 14:25:30) What's wrong with my code? because when I run it, the textbox appears empty.
我正在尝试使用我喜欢的格式（例如 14:25:30）将当前时间放入我的文本框中 我的代码有什么问题？因为当我运行它时，文本框显示为空。
<td>
<input id="date" name="curTime" size="20" maxlength="20" Required />
</td>
<script type="text/javascript">
var timenow = new Date();
timenow.format("UTC:h:MM:ss TT Z");
document.getElementById("date").value = new Date().toUTCString();
</script>
回答by Andy G
There is no formatfunction for a Date(), unless you have written one yourself. In which case, the error is probably in this function.
Date()没有格式函数，除非您自己编写。在这种情况下，错误可能出在这个函数中。
The format() call creates an error, but you are not using timenowanyway. I assume you intended to set the value to timenow.
format() 调用会产生错误，但timenow无论如何您都没有使用。我假设您打算将该值设置为 timenow。
You could borrow my format method, but it doesn't include UTC, TT or Z.
你可以借用我的格式方法，但它不包括 UTC、TT 或 Z。
Date.prototype.format = function (sFormat, twelve) {
// Returns: A string version of the date.
// Usage: date_instance.format("d mmm yy hh:nn:ss ap") or
// date_instance.format("dddd dd mmmm hh:nn", true)
// Defaults to YYYY/MM/DD.
// twelve == true for a 12hr clock, or just AP or ap within
// sFormat (for AM/PM or am/pm).
// Use z or zzz for milliseconds and xx for suffixes (st, nd, etc.).
var MonthNames = ["January", "February", "March", "April", "May", "June",
"July", "August", "September", "October", "November", "December"];
var DayNames = [ "Sunday", "Monday", "Tueday", "Wednesday", "Thursday",
"Friday", "Saturday" ];
var dDate = this || new Date(),
D = dDate.getDate(), DDDD = DayNames[dDate.getDay()],
DDD = DDDD.substr(0,3),
M = dDate.getMonth()+1, MMMM = MonthNames[dDate.getMonth()],
MMM = MMMM.substr(0,3),
YYYY = dDate.getFullYear(), YY = ('' + YYYY).substr(2, 2),
H = dDate.getHours(), N = dDate.getMinutes(), S = dDate.getSeconds(),
Z = dDate.getMilliseconds(),
ap = (H > 11) ? "pm" : "am",
// pad with leading zeros, if required
DD = ( D < 10 ? "0" : "" ) + D,
MM = ( M < 10 ? "0" : "" ) + M,
NN = ( N < 10 ? "0" : "" ) + N,
SS = ( S < 10 ? "0" : "" ) + S,
ZZZ = ( Z < 10 ? "00" : (Z < 100 ? "0" : "") ) + Z, XX;
var AP = (sFormat && (sFormat.toUpperCase().indexOf('AP')+1)) ?
((sFormat.indexOf('ap')+1) ? ap : ap.toUpperCase()) : '';
if (twelve || AP) {
H = (H < 12) ? (H || 12) : ((H - 12) || 12);
}
var HH = ( H < 10 ? "0" : "" ) + H;
XX = (D == 1 || D == 21 || D == 31) ? "st" :
((D == 2 || D == 22) ? "nd" : ((D == 3 || D == 23) ? "rd" : "th"));
sFormat = ( sFormat ) ? sFormat.toUpperCase() : 'YYYY/MM/DD';
var sParsed = sFormat.replace(/D{1,4}|M{1,4}|Y{2,4}|H{1,2}|N{1,2}|S{1,2}|Z{1,3}|XX|AP/g,
function (m) {
try {
return eval(m);
} catch (e) {
return '';
}
});
return sParsed;
};
I use 'nn' for minutes, reserving 'mm' for the month.
我使用 'nn' 表示分钟，保留 'mm' 表示月份。
回答by Jay Harris
change your javascript to this.
将您的 javascript 更改为此。
var timenow = new Date();
document.getElementById("date").value = timenow.toString();
the format function format()is a php thing, to print the date as a string in the text box use the toString()function.
format 函数format()是 php 的东西，要在文本框中将日期打印为字符串，请使用该toString()函数。
you can set the format of the date in the toString()function
您可以在toString()函数中设置日期的格式
回答by RobG
You can format the current UTC time in javascript using a function like:
您可以使用如下函数在 javascript 中格式化当前的 UTC 时间：
function getCurrentUTCTime() {
var d = new Date();
function z(n){ return (n<10? '0':'') + n;}
return z(d.getUTCHours()) + ':' +
z(d.getUTCMinutes()) + ':' +
z(d.getUTCSeconds());
}
For local time:
当地时间：
function getCurrentTime() {
var d = new Date();
function z(n){ return (n<10? '0':'') + n;}
return z(d.getHours()) + ':' +
z(d.getMinutes()) + ':' +
z(d.getSeconds());
}
回答by Ritz
You just need to change your javascript(24 hour format)
您只需要更改您的 javascript（24 小时格式）
<script>
{
var today=new Date();
var t=today.toLocaleTimeString("en-GB");
document.getElementById("date").value=t;
}
</script>
Hope this helps!!
希望这可以帮助！！
回答by Moeed Farooqui
You can also do this with builtin functions of PHP
您也可以使用 PHP 的内置函数执行此操作
<input id="date" name="curTime" value="<?php echo date('D-M-Y')." ".gmdate("H:i:s", time()); ?>" size="20" maxlength="20" Required />
