douxia1988 2013-10-18 06:50
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如何使用jQuery和PHP使用setInterval按顺序调用数组项？

I have following index.php file:

<html lang="en">
  <head>
    <script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
    <script type="text/javascript">
      $(document).ready(function(){
        var auto_refresh = setInterval(function (){
          //alert("abc");
          $('#mydiv').load('xyz.php').fadeIn("slow");
        }, 1000); 
      });
    </script>
  </head>
  <body>
    <div id="mydiv"> </div>
  </body>
</html>

In above file, I am trying to call my xyz.php file after 1 seconds. Its working fine. Following is my xyz.php file.

<?php
//echo rand();
$questions=array(
                 "Array Item 1",
                 "Array Item 2",
                 "Array Item 3");
?>

Earlier I was calling rand function, which was generating random number everytime when this file was called after every second. Now I have commented it out. My requirements have been changed. Now I want that when first time this file is called, Array Item 1 is echoed. 2nd time Array Item 2 is echoed. Similar Array Item 3 at third attempt. After this setInterval should not call this php file.

Here I need your help.

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5条回答 默认 最新

  • dongxing8766 2013-10-18 07:05
    关注

    In JS: 

    var count = 0;

$(document).ready(function(){
var auto_refresh = setInterval(function (){
    $('#mydiv').load('xyz.php', {count: count}, function () {
        count = count + 1;

        //after three attempts it won't call php file.
        if (count > 2) {
            clearInterval(auto_refresh);
        }
    }).fadeIn("slow");
    }, 1000); 
});

    In PHP:

    <?php
$questions=array(
                 "Array Item 1",
                 "Array Item 2",
                 "Array Item 3");

if (isset($_POST["count"])) {
    echo $questions[intval($_POST["count"])];
}
?>
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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