我正在查看将mysql查询结果输出到php页面上的一个表中,其中表的第一列是结果,第二列填充有Javascript计时器
但是我的目标是拥有它,以便当数据进入mysql数据库时显示在表上,然后在查询停止拾取数据时将其从表中删除
但是,我面临的问题是我不确定在每次运行查询时如何在不重置JavaScript计时器的情况下执行此操作,
我经历了几个提到使用ajax的问题,这很好,但是我不确定我会把HTML放在哪一面
编辑: 下面是我现在使用ajax进行的第二次尝试代码,但是我无法获得表将其显示为意外令牌<第27行
我当前的页面加载代码以调用数据如下:
PHP
<?php
header('Content-type: application/json');
$servername = "localhost";
$username = "user";
$password = "password";
$dbname = "test";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
# header('Content-Type: applicaton/json');
$sql = "SELECT
*
FROM
(SELECT
beacon,location,
COUNT(location) AS counter
FROM `track`
WHERE `date` = CURDATE() and `time` > NOW() - interval 60 second
GROUP BY beacon) AS SubQueryTable
ORDER BY beacon + 0 ASC;";
$result = $conn->query($sql);
$result = mysqli_query($conn , $sql);
$rows = array();
while($r = mysqli_fetch_assoc($result)) {
$rows[] = $r;
}
echo json_encode($rows);
$conn->close();
?>
HTML
$.get('vendor/fetch.php', function(response) {
console.log(response);
var row;
response.forEach(function(item, index) {
console.log(item);
(unexpexted token here)
<table id="table">
<?php
while($row = mysqli_fetch_array($result))
{
?>
<tr style="background-color: <?php echo $row['item.location'];?>">
<td><?php echo $row['item.beacon'];?></td>
<td> <span class='minutes'>00</span>:<span class='seconds'>00</span>
</td>
</tr>
<?php }
mysqli_close($con);
?>
</table>
});
});
function updateTable() {
//console.log('function called');
$.get('vendor/fetch.php', function(response) {
response.forEach(function(item, index) {
console.log(item.beacon);
});
});
var updateTableInterval = setInterval(updateTable, 100);
};
</script>
</head>
<body>
<script>
var sec = 0;
function pad(val) {
return val > 9 ? val : "0" + val;
}
var timer = setInterval(function () {
$(".seconds").html(pad(++sec % 60));
$(".minutes").html(pad(parseInt(sec / 60, 10)));
}, 1000);
</script>
</body>