[Resolved] PHP submit form at end of duration

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Javascript

PHP

jQuery

Hello,

I wanted my PHP form to be submitted at end of duration, for example the duration is 5 minutes, so as the time reach to 0 the form submits automatically.

I tried the below but it submits the form immediately while I want it to be submitted after the timer reaches to 0.
please help.
Thanks in advance.

What I have tried:

$(function () {

        var duration = 60 * minutes,
        display = $('#time');
    startTimer(duration, display); 
    
});
function startTimer(duration, display) {

    var timer = duration, minutes, seconds;
  var t =  setInterval(function () {
        minutes = parseInt(timer / 60, 10);
        seconds = parseInt(timer % 60, 10);

        minutes = minutes < 10 ? "0" + minutes : minutes;
        seconds = seconds < 10 ? "0" + seconds : seconds;

        display.text(minutes + ":" + seconds);

        if (--timer < 0) {
            timer = 0;
            clearInterval(t);
            $('#frmquiz').submit();
        }
    }, 1000);
}