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我有一个用于倒计时的 javascript 代码。我有一个从数据库 usu php 收集的日期，我需要将日期对象传递给 javascript 函数，但我不知道如何。我试过这个：

<body onload="countIt(<?php echo $event->startDate;?>)">

但它似乎不起作用。这是我拥有的js代码

function countIt(date) {
    ///i will parse the date into below variables if I can get the date.
    year = 2013;
    month = 09;
    day = 28;
    hours = 12;
    minutes = 00;
    seconds = 00;

    setTimeout(function() {
        endDate = new Date(year, month, day, hours, minutes, seconds, 00);
        thisDate = new Date();
        thisDate = new Date(thisDate.getFullYear(), thisDate.getMonth() + 1, thisDate.getDay(), thisDate.getHours(), thisDate.getMinutes(), thisDate.getSeconds(), 00, 00);

        var daysLeft = parseInt((endDate - thisDate) / 86400000);
        var hoursLeft = parseInt((endDate - thisDate) / 3600000);
        var minutsLeft = parseInt((endDate - thisDate) / 60000);
        var secondsLeft = parseInt((endDate - thisDate) / 1000);

        seconds = minutsLeft * 60;
        seconds = secondsLeft - seconds;

        minutes = hoursLeft * 60;
        minutes = minutsLeft - minutes;

        hours = daysLeft * 24;
        hours = (hoursLeft - hours) < 0 ? 0 : hoursLeft - hours;

        days = daysLeft;

        startCount(days, hours, minutes, seconds);
    }, 1000);
}

function startCount(days, hours, minutes, seconds) {
    document.getElementById("counter").innerHTML = "DAYS " + days + ", HOURS " + hours + ", MINUTES " + minutes + ", SECONDS: " + seconds;
    countIt();
}
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1 回答 1

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您可以通过多种方式制作 javascript 日期对象：

    var d = new Date();
    var d = new Date(milliseconds);
    var d = new Date(dateString);
    var d = new Date(year, month, day, hours, minutes, seconds, milliseconds);

因此，其中一种选择可能是：

    <body onload="countIt(<?php echo strtotime($event->startDate);?>)">

并在您的功能开始时：

    var date = new Date(date);

仅当您的 $event->startDate 是有效的 PHP 日期格式时，这才有效。您可以在此处了解更多信息。

于 2013-06-30T00:35:22.557 回答