Trouble with javascript timer and php variables

Question

I have been at this for quite a while now but can't seem to crack why this javascript timer, using PHP variables will not actually count down...

Here is my code

<script>
        <?php
        if($_SESSION['mydropdown'] == 1){
        $var = ($_SESSION['timer'] + 0.1 * 60) -  time();
        }
        else {
             $var = ($_SESSION['timer'] + 1440 * 60) -  time();
        }
        ?>

        setInterval(function() { 
            var difference = Math.floor('<?php echo $var ;?>');
            var seconds = fixIntegers(difference % 60);
            difference = Math.floor(difference / 60);

            var minutes = fixIntegers(difference % 60);
            difference = Math.floor(difference / 60);

            var hours = fixIntegers(difference % 24);
            difference = Math.floor(difference / 24);

            var days = difference;
            $("#Timer").text(seconds + " Seconds"+ minutes + "m" + hours + "h" + days + "d" );
            }, 1000);

    </script>

    You will be logged out in : <span id="Timer"></span>

Basically the first timer if the dropdown is 1 should be 6 seconds, which it is, however it is stationary on 6 seconds and doesn't count down at all... I changed this directly from another function that is counting down properly, but I can't seem to find out where I have gone wrong with this one and why won't it actually count down. Basically I want it to go from 6 to 5 to 4 and so on to 0, if it were 6 seconds.

I have jquery/jscript installed as my other timer is working, that does not contain php variables.

Thanks in advance

Please post the JavaScript code as it is received by the browser (view source code for the URL). — Abhi Beckert
– Abhi Beckert, Commented Mar 28, 2014 at 16:43
@AbhiBeckert I'm not following I rightclicked the page and hit view source code, and it's exactly the same as what is posted there above — Jim
– Jim, Commented Mar 28, 2014 at 16:46

Tun Zarni Kyaw · Accepted Answer · 2014-03-28 16:59:47Z

1

Place this var difference = Math.floor(<?php echo $var; ?>); statement outside the anonymous function called by setInterval. And you don't need ' single quote

You code should be like this:

var difference = Math.floor('<?php echo $var ;?>');

setInterval(function() { 
    var d = difference;                       // This line is added
    var seconds = fixIntegers(difference % 60);
    difference = Math.floor(difference / 60);

    var minutes = fixIntegers(difference % 60);
    difference = Math.floor(difference / 60);

    var hours = fixIntegers(difference % 24);
    difference = Math.floor(difference / 24);

    var days = difference;
    difference = d - 1;                       // This line is added
    $("#Timer").text(seconds + " Seconds"+ minutes + "m" + hours + "h" + days + "d" );
}, 1000);

edited Mar 28, 2014 at 16:59

answered Mar 28, 2014 at 16:51

Tun Zarni Kyaw

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5 Comments

Jim Over a year ago

Progress, however it jumps from 6 straight to 0

Tun Zarni Kyaw Over a year ago

@Jim, I added 2 line the the code, please check again

Tun Zarni Kyaw Over a year ago

@Jim, I think you might want to stop the timer when count down becomes zero. Or you might want to redirect to login page. Hope you can do it! Otherwise ask new question.

Jim Over a year ago

is there a way to auto redirect, i do have a "header(Location : login.php)" however I have to refresh this to take me back, it doesn't auto redirect if you know what I mean, when the timer hits 0 it calls this, however i need to refresh before the page gets loaded

Tun Zarni Kyaw Over a year ago

@Jim, so, post a new question.

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