JavaScript Code<script type="text/javascript"> $(document).ready(function() { $(".country").change(function() { var id=$(this).val(); var dataString = 'id='+ id; $.ajax ({ type: "POST", url: "ajax.php", data: dataString, cache: false, success: function(html) { $(".city").html(html); } }); }); }); </script>
XML/HTML Code
大类: --Select-- include('../../conn.php'); $sql=mysql_query("select * from bigclass"); while($row=mysql_fetch_array($sql)) { $id=$row['bigclassid']; $data=$row['bigclassname']; echo ''.$data.''; } ?>
小类 : --Select--
ajax.php
PHP Codeinclude('conn.php'); if($_POST['id']) { $id=$_POST['id']; $sql=mysql_query("select * from smallclass where bigclassid='$id'"); while($row=mysql_fetch_array($sql)) { $id=$row['smallclassid']; $data=$row['smallclassname']; echo ''.$data.''; } } ?>
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