制作实时时钟javascript

Question

有谁知道如何使实时的javascript时间运行..

我有这个PHP代码

    $expiredate = date('d m Y G:i:s', $rdate1);
    $f_ex_date = explode(" ", $expiredate);
    $f_ex_time = explode(":", $expiredate);
    $_endDate = mktime($f_ex_date[0],$f_ex_date[1],$f_ex_date[2],$f_ex_date[1],$f_ex_date[0],$f_ex_date[2]);
    $time = $_endDate - time();
    $days = floor($time/86400);
    $hours = floor(($time-($days*86400))/3600);
    $mins = floor (($time-($days*86400)-($hours*3600))/60);
    $secs = floor ($time-($days*86400)-($hours*3600)-($mins*60));

   echo "Your account going to be expired in <span style=\"color: #C11B17;font-family:arial;font-size: 16px;\">".$days."</span> Days <span style=\"color: #C11B17;font-family:arial;font-size: 16px;\">".$hours."</span> Hours <span style=\"color: #C11B17;font-family:arial;font-size: 16px;\">".$mins."</span> Minutes <span style=\"color: #C11B17;font-family:arial;font-size: 16px;\">".$secs."</span> Seconds";

是否有可能让它像现场直播？

Answer 1

这是怎么做的.工作演示.

首先,在HTML文档的顶部:

.datetime {
    color: #C11B17;
    font-family:arial;
    font-size: 16px;
}

我们这样做,所以我们可以稍微清理我们的HTML代码:

$rdate1 = 1240550032; // Fri, 24 Apr 2009 05:13:52 GMT
$expiredate = date('d m Y G:i:s', $rdate1);
$time = $rdate1 - time();
$days = floor($time/86400);
$hours = floor(($time-($days*86400))/3600);
$mins = floor(($time-($days*86400)-($hours*3600))/60);
$secs = floor($time-($days*86400)-($hours*3600)-($mins*60));

printf("
    Your account is going to expire in
    <span class='datetime' id='days'>%s</span> Days
    <span class='datetime' id='hours'>%s</span> Hours
    <span class='datetime' id='minutes'>%s</span> Minutes
    <span class='datetime' id='seconds'>%s</span> Seconds
", $days, $hours, $mins, $secs);

我不太确定你所采取的中间步骤来自哪里,但上面的代码让我得到了时间差$rdate1(可能是一个unix时间戳)和time().

最后,我们可以使用Javascript执行类似的操作,以便在页面加载后更新时间:

addEvent(window, 'load', function() {
    var eDays = document.getElementById('days');
    var eHours = document.getElementById('hours');
    var eMinutes = document.getElementById('minutes');
    var eSeconds = document.getElementById('seconds');
    var timer;
    timer = setInterval(function() {
        var vDays = parseInt(eDays.innerHTML, 10);
        var vHours = parseInt(eHours.innerHTML, 10);
        var vMinutes = parseInt(eMinutes.innerHTML, 10);
        var vSeconds = parseInt(eSeconds.innerHTML, 10);

        vSeconds--;
        if(vSeconds < 0) {
            vSeconds = 59;
            vMinutes--;
            if(vMinutes < 0) {
                vMinutes = 59;
                vHours--;
                if(vHours < 0) {
                    vHours = 23;
                    vDays--;
                }
            }
        } else {
            if(vSeconds == 0 &&
               vMinutes == 0 &&
               vHours == 0 &&
               vDays == 0) {
                clearInterval(timer);
            }
        }
        eSeconds.innerHTML = vSeconds;
        eMinutes.innerHTML = vMinutes;
        eHours.innerHTML = vHours;
        eDays.innerHTML = vDays;
    }, 1000);
});


function addEvent( obj, type, fn ) {
  if ( obj.attachEvent ) {
    obj['e'+type+fn] = fn;
    obj[type+fn] = function(){obj['e'+type+fn]( window.event );}
    obj.attachEvent( 'on'+type, obj[type+fn] );
  } else
    obj.addEventListener( type, fn, false );
}