DanKud

<input type="text" id="order_kupon" name="kupon" class="input-md round form-control def-text" placeholder="Код купона">
<hr>
<h5 class="uppercase">Скидка: <span id="skidka"></span></h5>

$('#order_kupon').on('change', function() {
    updateKupon();
});

function updateKupon() {
    $.ajax({
        type: "POST",
        url: "requests.php",
        data: {
            action: 'get-kupon',
            kupon: $('#order_kupon').val()
        },
        cache: false,
        success: function(data){
            if(data) {
                $("#skidka").html(data);
            }
        }
    });
}

if(isset($_POST['action']) && $_POST['action'] == 'get-kupon') {
    $kupon = $_POST['kupon'];
    if($kupon == "kodkupona") {
        $skidka = 5;
        echo $skidka.'%';
    } else {
        echo 0.'%';
    }
}

$arr = [4,12,73,8,1,1,36,7,6,22,22,3];

for ($i = 0; $i < count($arr); $i++) {
    if ($i && $arr[$i] == $arr[($i-1)]) {
        echo 'есть идущие подряд: '.$arr[$i].' - '.$arr[$i].'<br>';
    }
}

function secToTime(num) {
    num = Number(num);
    var h = Math.floor(num / 3600);
    var m = Math.floor(num % 3600 / 60);
    var s = Math.floor(num % 3600 % 60);
    h = (h < 10 ? '0' : '') + h;
    m = (m < 10 ? '0' : '') + m;
    s = (s < 10 ? '0' : '') + s;
    return h + ':' + m + ':' + s;
}

alert(secToTime(70));

$num = 0;
foreach ($arCurFilterItem['VALUES'] as $arCurFilterItemValue) {
    if ($arCurFilterItemValue['ELEMENT_COUNT'] != 0) { $num++; }
    print_r($arCurFilterItemValue['ELEMENT_COUNT'].'-');
}
echo 'Не нулевых значений - '.$num;

.....
<button id="button">отправить время</button>
.....
<script>
button.onclick = function() {
    var date = new Date();
    var h = ((date.getHours() < 10) ? '0' : '') + date.getHours();
    var m = ((date.getMinutes() < 10) ? '0' : '') + date.getMinutes();
    var s = ((date.getSeconds() < 10) ? '0' : '') + date.getSeconds();
    var time = h + '+' + m + '+' + s;
    location = '?time=' + time;
};
</script>
.....

mysqli_query($connect,"INSERT INTO sh_refers_refers (pid, name, page, priority) VALUES ('".$pid."', '".$_POST['name']."', '".$_POST['page']."', '0'");