我這裏有一個倒計時腳本如何在倒計時完成後從MySql中選擇隨機行?
<h2 id="countdown"></h2>
<script>
var CountDownTimer;
CountDownTimer = function(dt, id) {
var _day, _hour, _minute, _second, end, selector, showRemaining, timer;
selector = document.getElementById(id);
end = new Date(dt);
_second = 1000;
_minute = _second * 60;
_hour = _minute * 60;
_day = _hour * 24;
showRemaining = function() {
var days, distance, hours, minutes, now, seconds;
now = new Date();
distance = end - now;
if (distance <= 0) {
CountDownTimer("09/27/2016 20:00", "countdown");
return;
}
days = Math.floor(distance/_day);
hours = Math.floor((distance % _day)/_hour);
minutes = Math.floor((distance % _hour)/_minute);
seconds = Math.floor((distance % _minute)/_second);
return selector.innerHTML = days + "days " + hours + "hrs " + minutes + "mins " + seconds + "secs";
};
return timer = setInterval(showRemaining, 1000);
};
CountDownTimer("09/27/2016 19:00", "countdown");
</script>
倒計時完成後,我希望查詢從數據庫中選擇一個隨機行並重新啓動倒計時+1小時。 1小時後,我希望這種情況再次發生。
這是應該選擇隨機行的代碼,如果可能的話,這是我想要在倒數計時腳本中強制執行的代碼。
<?php $sql = "SELECT * FROM users ORDER BY RAND() LIMIT 1"; $result1 = $conn->query($sql);?>
下面是最後一個碼
<?php
if ($result1->num_rows > 0) {
// output data of each row
while($row = $result1->fetch_assoc()) {
echo $row["username"];
}
} ?>
此代碼現在工作,但問題是,我每次刷新頁面的時候,一個新的隨機行選擇結果的代碼。我想要的是每小時一個新的隨機行被選中。
你有一個例子嗎? – JayJay
<?php session_start(); } else { //代碼來生成新的數字..並將其存儲在會話變量使用 $ _SESSION ['random_number'] = your_variable; } –