当其他文件的内容更改时，如何刷新HTML文件？

Question

I have this situation with a device accessing a simple MySQL database using PHP. 我遇到这样的情况：设备使用PHP访问简单的MySQL数据库。 When I do a search, the results are written in an HTML file. 当我进行搜索时，结果将写入HTML文件中。

I have a second device (very basic android tablet) that has this HTML file opened. 我还有第二个设备（非常基本的Android平板电脑）已打开此HTML文件。 Using live.js it refreshes when it's contents change. 使用live.js可以在内容更改时刷新。 What I need is this: a static message saying something like "Waiting for search results" and only when the contents of the page change the results are shown... 我需要的是：一条静态消息，上面写着“等待搜索结果”之类的内容，并且仅在页面内容更改结果时才显示...

Something like this: On the tablet load 1.html (waiting for search results). 这样的事情：在平板电脑上加载1.html（等待搜索结果）。 When contents of page 2.html change (there was a search query), display that (2.html). 当2.html页的内容发生更改（有搜索查询）时，将其显示（2.html）。 After a push of a button (user input), let's go back to 1.html and wait for the contents of page 2.html to change again. 按下按钮（用户输入）后，让我们回到1.html，等待页面2.html的内容再次更改。

With live.js alone I can only watch for the file that's currently open... 仅使用live.js时，我只能监视当前打开的文件...

Any idea on how I can achieve this? 关于如何实现此目标的任何想法吗？ Thanks a bunch. 谢谢你

[EDIT - SOLVED] I got this to work like this: when the user of the tablet pushes a button it runs a PHP script that replaces the contents of the file (the previous search results) with the "waiting for results" text. [编辑-已解决]我的工作方式是这样的：平板电脑的用户按下按钮时，它将运行PHP脚本，该脚本将文件内容（先前的搜索结果）替换为“等待结果”文本。 Of course, it has live.js in the head, and when a new search occurs, the page reloads with the new search results. 当然，它的头部带有live.js，并且在进行新搜索时，页面会重新加载新搜索结果。

It was easier than I thought I was overthinking it. 这比我认为的要容易得多。

The PHP script: PHP脚本：

<?php
ob_start();

$myFile = 'ana.html';
unlink($myFile);
$fh = fopen($myFile, 'w') or die ("can't open file");

$stringData = 
'<html>
  <head>
  <title>Rezultatele cautarii</title>
   <link rel="stylesheet" href="style.css">
   <script src="live.js"></script>
  </head>
  <body>
   <h1 class="button">Asteptam cererea</h1>
  </body>
 </html>';

fwrite($fh, $stringData);
fclose($fh);

header('Location: '.$myFile);

die();
?>

Answer 1

Do you mean something like this? 你的意思是这样吗？

document.write('<div id="loading"><br><br>Please wait...</div>');


function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      if (oldonload) {
        oldonload();
      }
      func();
    }
  }
}

addLoadEvent(function() {
  document.getElementById("loading").style.display="none";
});

Answer 2

I suppose you could have a setInterval() running in JavaScript, then get the content of the page as it was at a previous interval and compare it in PHP using a checksum? 我想您可以在JavaScript中运行setInterval（），然后获取页面内容，就像以前的间隔一样，然后在PHP中使用校验和进行比较？ Or just compare it letter by letter. 或者只是逐字母比较它。 Too tired to write code now though. 现在太累了，无法编写代码。

当其他文件的内容更改时，如何刷新HTML文件？

问题描述

2 个解决方案

解决方案1
0 2013-05-21 07:42:39

解决方案2
-1 2013-05-21 07:56:34

当其他文件的内容更改时，如何刷新HTML文件？

问题描述

2 个解决方案

解决方案1 0 2013-05-21 07:42:39

解决方案2 -1 2013-05-21 07:56:34

解决方案1
0 2013-05-21 07:42:39

解决方案2
-1 2013-05-21 07:56:34