我有这个问题:
SELECT COUNT(*) FROM my_table;
我想在我的网页上显示它并自动更新它而不刷新网页。
HTML代码:
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<div class="container">
<h5>/*mysql query result goes here*/</h5>
</div>
</body>
</html>
我也有这个count.php:
<?php
$servername = "localhost";
$username = "root";
$password = "root";
$dbname = "myDB";
$conn = new mysqli($servername, $username, $password, $dbname);
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "SELECT COUNT(*) AS Count FROM my_table";
$result = $conn->query($sql);
$row = $result->fetch_assoc();
echo $row['Count'];
$conn->close();
?>
我不知道如何在我的HTML中显示计数。我还想自动更新显示而不刷新网页,让我们说每30秒。
答案 0 :(得分:0)
对count.php
$.ajax({
url: "count.php",
cache: false,
success: function(html){
$("#result").html(html);
}
});
您的html文件现在可以包含
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<div class="container">
<h5 id="result">/*mysql query result goes here*/</h5>
</div>
</body>
</html>
有关$.ajax
的更多信息; http://api.jquery.com/jquery.ajax/
答案 1 :(得分:0)
你应该使用post()Methode形式jquery和setTimeout()。
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<div class="container">
<h5 id="count">/*mysql query result goes here*/</h5>
</div>
</body>
<script>
setTimeout(function(){
$.post("Count.php",
{get_count:true},
function(result){
$("#count").html(result);
}
);
},30000);
</script>
</html>
别忘了更改php文件。你需要检查POST ['get_count']是否是最好的,如果你想处理多个Post请求。