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Asked: 2026-05-22T12:24:44+00:00

I have try to post value from page a to page b via jquery

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I have try to post value from page a to page b via jquery ajax.
But when I need a onload event in the handle page. I tried 2 ways, but all failed. How to call correctly or it is a bug?

a.php

<script type="text/javascript" src="jquery-1.6.1.min.js"></script>
<script type="text/javascript">     
jQuery(document).ready(function(){
    $("a").click(function(){
     $.ajax({
         url: "b.php", 
         dataType: "html",
         type: 'POST', 
         data: "word="+"hello", 
         success: function(data){ 
            $("#show").html(data);
         }
      });
    });
});
</script>
<a href="#">click</a>
<div id="show"></div>

b.php

<script language="JavaScript">
   function callhello() {
       alert('<?php echo $_POST['word']; ?>');
       //many other code, for a test, I moved them. and replace a alert call.
   }
</script>
<body onload="JavaScript:callhello()"><!-- way 1, put onload here, not run -->
    Blah~~ Blah~~ Blah~~
<script language="JavaScript">// change to text/javascript or even remove, no effect
window.onload = function() {
  callhello();
};
</script><!-- way 2, put onload here, still not run. -->
</body>
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1 Answer

  1. Editorial Team

    When you insert HTML into your document, any scripts are executed with the document’s context. That means that window.onload refers to the load event of the current window. Given that the insertion is delayed (by waiting for the click event), the window.onload event has already been triggered. You can attach a function to the load event, but it will never be triggered.

    It’s probably best to put the function call straight into your script element:

    <script type="text/javascript"> // the language attribute is deprecated
  callhello();
</script>

    This means that jQuery will execute the script as it’s added to the document.

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