php jquery刷新div
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Jquery refresh div
提问by Jaskaran Singh Puri
I've got a certain php code in a div which gets data from mysql.I want this div to refresh every minute without refreshing the entire page.
我在一个 div 中有一个特定的 php 代码，它从 mysql.I 获取数据。我希望这个 div 每分钟刷新一次而不刷新整个页面。
Currently I'm using this, doesn't work well
目前我正在使用这个，效果不佳
<div id="abc">
<?php
?>
</div>
window.setTimeout('location.reload()', 60000);
回答by Justin Ethier
The ideal way to do this is to use jQuery.ajax to retrieve data from your server, and then use JavaScript/jQuery within your successfunction to update your page.
执行此操作的理想方法是使用jQuery.ajax 从您的服务器检索数据，然后在您的success函数中使用 JavaScript/jQuery来更新您的页面。
You can still use setTimeoutor equivalent to periodically issue AJAX requests.
您仍然可以使用setTimeout或等效于定期发出 AJAX 请求。
回答by Ayyappan Sekar
As you want to refresh the div content every minute you need to look at setIntervalmethod and loadof jQuery:
由于您想每分钟刷新一次 div 内容，您需要查看setInterval方法和jQuery 的加载：
window.setInterval(function(){
$('#abc').load('PHPFile.php');
}, 1000);
and your PHP script mentioned in the url part of the load method must be capable to provide the result in HTML format which is going to be placed in the given div (id:abc)
并且您在 load 方法的 url 部分中提到的 PHP 脚本必须能够以 HTML 格式提供结果，该结果将放置在给定的 div (id:abc) 中
回答by Magnus Burton
Have the PHP-code on another page (for example; loaddata.php) and have a jQuery timer executing a function which loads the page loaddata.php
将 PHP 代码放在另一个页面上（例如；loaddata.php），并让 jQuery 计时器执行加载页面loaddata.php的函数
Loaddata.php
加载数据文件
<?php
echo "Hello World!";
?>
index.php
索引.php
<div id="data"></div>
<script>
$('#div').load("loaddata.php", function() {
window.setInterval("loadData", 60000);
});
function loadData()
{
$('#div').load("loaddata.php");
}
</script>
回答by Mike Thomsen
Something like this:
像这样的东西：
function refreshContent() {
$.post(urlHere, { data here...}, success(data) {
//...manipulate DOM here...
}
}
setTimeout(refreshContent, 60000);
回答by M1K1O
Example of jQuery Ajax
jQuery Ajax 示例
file1.php
文件1.php
<?php
echo 'PHP content e.g. from database based on submitted request - '.$_POST['my-value'];
?>
file2.html
文件2.html
<div class="content"></div>
<a href="#" class="reload-data"> Refresh div </a>
<script>
$(function(){
$(".reload-data").click(function(){
$.post("file1.php", {my-value: "something"}, function(data){
$(".content").html(data);
});
});
});
setTimeout(function(){$(".reload-data").click();}, 60000);
</script>
回答by Vlad Preda
For these situations I sometimes use jQuery.load()
对于这些情况，我有时会使用jQuery.load()
Example from documentation:
文档中的示例：
<div id="result"></div>
<script type="text/javascript">
function refreshDiv() {
$('#result').load('ajax/test.html #container', function(){ /* callback code here */ });
}
setInterval(refreshDiv, 10000);
</script>
This does the following:
这将执行以下操作：
- Checks if the
#resultelement is in the current page - If it is, it makes a request to the
ajax/test.htmlpage - Grabs the
#containerfrom the response, and dumps it into#result - And it does this every 10 seconds
- 检查
#result元素是否在当前页面 - 如果是，则向
ajax/test.html页面发出请求 - 抓住
#container从响应，并转储到#result - 它每 10 秒执行一次
That's about it. One line of code, although not as efficient as a true ajax request, it does the job.
就是这样。一行代码，虽然不如真正的 ajax 请求高效，但它可以完成工作。
