Question

function next_second(){
var target = '1350840000';    
var now = <?php echo time();?>;       
alert(now);
}
$(function() {
  setInterval(next_second, 1000);
});

the above alert function always returns same value. Am i doing something wrong?

Answer 1

The reason why it is returning the same value is because the value of your ‘now’ variable is generated by the time your page loads. It doesn’t make sense, because no matter how many times you execute the function, it would still return the same result/value.

You need to dynamically detect the current time but not on page load.

You can try the following script:

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.0/jquery.min.js" type="text/javascript"></script>
<script>
function next_second(){
    var target = '1350840000';    
    var now = new Date().getTime();;       
    console.log(now);
}
$(function() {
  setInterval( next_second, 1000 );
});
</script>

Thank you.