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Editorial Team
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Asked: 2026-05-20T11:50:58+00:00

I am new to studying jquery.ajax. I want to paste some data from a.php

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I am new to studying jquery.ajax. I want to paste some data from a.php to b.php.
Here is my code:

a.php

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js" type="text/javascript"></script>
<script language="javascript">
$(document).ready(function () {      
var params = "value=" + $('#send').text();   
$.ajax({        
     url:'b.php',        
     type:'post',                 
     dataType:'html',            
     data:params,  
     success:function(data){  $("#result").html($(data).html('#aa')); }
});
});
</script>
<body>
<div id="result"></div>//sometimes the return data is empty, so this part just return: <div="aa"></div>
<div id="send">apple</div>

b.php

<?php
echo '<div id="aa">';
//'.$_REQUEST['value'].' will put in some process here, but sometimes the return data is empty.
echo '</div>';
?>

How and where do I add a judgement, if <div id="aa"></div> is empty, add sorry, there is no result between it

so in a.php, the imformation will show: <div id="result"><div id="aa">sorry, there is no result</div></div>

Thanks.

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1 Answer

  1. Editorial Team

    Change your AJAX call to be:

    $(document).ready(function () {      
var params = "value=" + $('#send').text();   
$.ajax({        
     url:'b.php',        
     type:'post',                 
     dataType:'html',            
     data:params,  
     success:function(data){  
         $("#result").html($(data).html('#aa'));
        if ( $("#aa").html() == "" ) {
            $("#aa").html("sorry, there is no result");
       }
    }
});
});
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