Question

As title says I need help with onchange. I have select tag,and I need to do different mysql query when I choose something from select list. Example:

<select name="list">
<option>cars</option>
<option>busses</option>
<option>trucks</option>
</select>

and then when i select cars it do this

$query="select * from table where type='cars'";

and if I choose trucks it do

$query="select * from table where type='trucks'";

and so on…
then I need to display the result in div under the list
example

<select name="list">
<option>cars</option>
<option>busses</option>
<option>trucks</option>
</select>
<div> this is where I need to display results from query</div> 

Please help!!!

Answer 1

If you want to change the result by ajax :

HTML :

 <select id="list" name="list">

    <option>cars</option>

    <option>busses</option>

    <option>trucks</option>
    </select>

in JS File:

$(document).ready(function() {
  $('#list').change(function() {
var selected=$(this).val();
  $.get("change_query.php?selected="+selected, function(data){
      $('.result').html(data);

    });
    });
});

and you should create change_query.php file and your query and code in it and return the result in it

$type = $_POST["selected"];

$query="select * from table where type='".$type."'";

print result here …. ;

• Tell me if you need any help ,I just guided you in Jquery not all code