dongqidi2799 2013-12-27 03:49
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setInterval()中的PHP file_get_contents()不起作用

I am trying to use get_file_contents() in a setInterval() to repeatedly update some text which is displaying the contents of a file. Here's the code:

<script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>
<body>
  <div id="theDiv"></div>
</body>
<script>
$("document").ready(function(){
  setInterval(function(){
    $("#theDiv").text("<?php echo file_get_contents('file.txt'); ?>");
    console.log("<?php echo file_get_contents('file.txt'); ?>")
  },500);
});
</script>

The problem is: it seems that the text is not updating until I reload the page.

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3条回答 默认 最新

  • douji6199 2013-12-27 03:51
    关注

    the setInterval get executed in the client side where as the php is evaluated in the server side so the command echo file_get_contents('file.txt'); is evalulated only once.

    You need to use an ajax request where it returns the contents of the file

     $("#theDiv").load("file.txt");
    

    where the server side resource file.txt returns the desired response that has to be displayed in the div

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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