问题描述
|
我有以下PHP倒计时脚本，它可以倒计时到日期和时间。请参见以下示例：
<SCRIPT language=\"JavaScript\" SRC=\"countdown.PHP?timezone=US/Pacific&countto=2011-06-25 00:00:00&do=t&data=Sorry,This Offer Has Expired.\"></SCRIPT>
<?PHP
// we will be sending Javascript codes
header(\'Content-Type: text/javascript\');
// select the timezone for your countdown
$timezone = trim($_GET[\'timezone\']);
putenv(\"TZ=$timezone\");
// Counting down to New Year\'s on 2020
$countdown_to = trim($_GET[\'countto\']); // 24-Hour Format: YYYY-MM-DD HH:MM:SS\"
// Getting the current time
$count_from = date(\"Y-m-d H:i:s\"); // current time -- NO NEED TO CHANGE
// Date difference function. Will be using below
function datediff($interval,$datefrom,$dateto,$using_timestamps = false) {
/*
$interval can be:
yyyy - Number of full years
q - Number of full quarters
m - Number of full months
y - Difference between day numbers
(eg 1st Jan 2004 is \"1\",the first day. 2nd Feb 2003 is \"33\". The datediff is \"-32\".)
d - Number of full days
w - Number of full weekdays
ww - Number of full weeks
h - Number of full hours
n - Number of full minutes
s - Number of full seconds (default)
*/
if (!$using_timestamps) {
$datefrom = strtotime($datefrom,0);
$dateto = strtotime($dateto,0);
}
$difference = $dateto - $datefrom; // Difference in seconds
switch($interval) {
case \'yyyy\': // Number of full years
$years_difference = floor($difference / 31536000);
if (mktime(date(\"H\",$datefrom),date(\"i\",date(\"s\",date(\"n\",date(\"j\",date(\"Y\",$datefrom)+$years_difference) > $dateto) {
$years_difference--;
}
if (mktime(date(\"H\",$dateto),$dateto)-($years_difference+1)) > $datefrom) {
$years_difference++;
}
$datediff = $years_difference;
break;
case \"q\": // Number of full quarters
$quarters_difference = floor($difference / 8035200);
while (mktime(date(\"H\",$datefrom)+($quarters_difference*3),$datefrom)) < $dateto) {
$months_difference++;
}
$quarters_difference--;
$datediff = $quarters_difference;
break;
case \"m\": // Number of full months
$months_difference = floor($difference / 2678400);
while (mktime(date(\"H\",$datefrom)+($months_difference),$datefrom)) < $dateto) {
$months_difference++;
}
$months_difference--;
$datediff = $months_difference;
break;
case \'y\': // Difference between day numbers
$datediff = date(\"z\",$dateto) - date(\"z\",$datefrom);
break;
case \"d\": // Number of full days
$datediff = floor($difference / 86400);
break;
case \"w\": // Number of full weekdays
$days_difference = floor($difference / 86400);
$weeks_difference = floor($days_difference / 7); // Complete weeks
$first_day = date(\"w\",$datefrom);
$days_remainder = floor($days_difference % 7);
$odd_days = $first_day + $days_remainder; // Do we have a Saturday or Sunday in the remainder?
if ($odd_days > 7) { // Sunday
$days_remainder--;
}
if ($odd_days > 6) { // Saturday
$days_remainder--;
}
$datediff = ($weeks_difference * 5) + $days_remainder;
break;
case \"ww\": // Number of full weeks
$datediff = floor($difference / 604800);
break;
case \"h\": // Number of full hours
$datediff = floor($difference / 3600);
break;
case \"n\": // Number of full minutes
$datediff = floor($difference / 60);
break;
default: // Number of full seconds (default)
$datediff = $difference;
break;
}
return $datediff;
}
// getting Date difference in SECONDS
$diff = datediff(\"s\",$count_from,$countdown_to);
?>
// Heres where the Javascript starts
countdown = <?=$diff?>;
// Converting date difference from seconds to actual time
function convert_to_time(secs)
{
secs = parseInt(secs);
hh = secs / 3600;
hh = parseInt(hh);
mmt = secs - (hh * 3600);
mm = mmt / 60;
mm = parseInt(mm);
ss = mmt - (mm * 60);
if (hh > 23)
{
dd = hh / 24;
dd = parseInt(dd);
hh = hh - (dd * 24);
} else { dd = 0; }
if (ss < 10) { ss = \"0\"+ss; }
if (mm < 10) { mm = \"0\"+mm; }
if (hh < 10) { hh = \"0\"+hh; }
if (dd == 0) { return (hh+\":\"+mm+\":\"+ss); }
else {
if (dd > 1) { return (dd+\" days \"+hh+\":\"+mm+\":\"+ss); }
else { return (dd+\" day \"+hh+\":\"+mm+\":\"+ss); }
}
}
// Our function that will do the actual countdown
function do_cd()
{
if (countdown < 0)
{
<?PHP
if(strtolower(trim($_GET[\'do\'])) == \'r\' )
{
?>
// redirect web page
document.location.href = \"<?=$_GET[\'data\']?>\";
<?PHP } ?>
<?PHP
if(strtolower(trim($_GET[\'do\'])) == \'t\' )
{
?>
// change text
document.getElementById(\'cd\').innerHTML = \"<?=$_GET[\'data\']?>\";
<?PHP } ?>
}
else
{
document.getElementById(\'cd\').innerHTML = convert_to_time(countdown);
setTimeout(\'do_cd()\',1000);
}
countdown = countdown - 1;
}
document.write(\"<div id=\'cd\'></div>\\n\");
do_cd();
<? exit(); ?>
解决方法
PHP文件正在生成针对特定ID的JavaScript：
document.getElementById(\'cd\')