Countdown timer PHP error

Question

I am trying to make a countdown timer which displays how many days until the product expires, and when there are 0 days, I want to display a message saying that it has expired:

<?php
$target =  mktime(0, 0, 0, 1, 7, 2013) ;
$today = time () ;
$difference =($target-$today) ;
$days =(int) ($difference/86400) ;
if ($today == $target)
{
print "this product has expired";
}
else
{
print "This product expires in $days days";
}
?>

When you visit the page, it always displays the second message, even though today is the same date as the target date.

If possible as well, could you tell me how to display the minutes and seconds without reloading the page? I would also like to update a MySQL Database when there are 0 days/minutes left, is this possible? There does not need to be a start/stop button.

Look at the right hand column below the ads.

Salman Arshad
– Salman Arshad

2013-01-06 21:37:42 +00:00
Commented Jan 6, 2013 at 21:37 — Salman Arshad
– Salman Arshad, Commented Jan 6, 2013 at 21:37
try strtotime("2013-07-01"); instead of mktime

mamdouh alramadan
– mamdouh alramadan

2013-01-06 21:39:52 +00:00
Commented Jan 6, 2013 at 21:39 — mamdouh alramadan
– mamdouh alramadan, Commented Jan 6, 2013 at 21:39
Use strcmp() to compare two strings

Mihai8
– Mihai8

2013-01-06 21:42:32 +00:00
Commented Jan 6, 2013 at 21:42 — Mihai8
– Mihai8, Commented Jan 6, 2013 at 21:42

Undo · Accepted Answer · 2016-03-26 15:08:13Z

I think you already got the solution. But if someone is still looking for this solution then this might help. In this solution we can split days,hours,mins,seconds.

Reverse timer from javascript:

var target_date = new Date('Aug 01 2014 20:47:00').getTime();
    var days, hours, minutes, seconds;
    var countdown = document.getElementById('timeremaining');
    var countdownTimer = setInterval(function () {
        var current_date = new Date().getTime();
        var seconds_left = (target_date - current_date) / 1000;

        days = parseInt(seconds_left / 86400);
        seconds_left = seconds_left % 86400;

        hours = parseInt(seconds_left / 3600);
        seconds_left = seconds_left % 3600;
        minutes = parseInt(seconds_left / 60);
        seconds = parseInt(seconds_left % 60);

        if(days <= 0 && hours <= 0 && minutes <= 0 && seconds <= 0 )
        {
           document.getElementById('timeremaining').innerHTML = '';
           clearInterval(countdownTimer);              
        }
        else
        {       
            if(days>0)
              {
                 days= days+'d,';
              } 
              else
              {
                 days='';
              }            
            countdown.innerHTML ='( ' + days + checkTime(hours) + ':'+ checkTime(minutes) + ':' + checkTime(seconds) +' remaining)';    
        }
    }, 1000);

    function checkTime(i) {
        if (i < 10) {i = '0' + i};  
        return i;
    }

Jim · Accepted Answer · 2013-01-06 21:53:44Z

1

There's two issues here. The first is that $today and $target are both measured in seconds.

This means unless you visit the page at the exact same second as target you wont see the message.

This also means that any time past the expiry will also work which presumably is not what you want. Try using:

if($today > $target)

To display the minutes and seconds you should look into javascript which could countdown the time.

answered Jan 6, 2013 at 21:53

Jim

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