GIF89a
<?php
include("include/config.php");
echo $q=$_REQUEST["q"];
$sql="SELECT * FROM subcategory WHERE cat_id = '".$q."'";
$result = mysqli_query($con,$sql);
?>
<table width="200" border="1">
<tr>
<td>
<select style="width:220px;">
<option value="00">---------------Select---------------</option>
<?php
while($row = mysqli_fetch_array($result))
{
$cat_id=$row['cat_id'];
?>
<option value="<?php echo $row['subcat_id'];?>"><?php echo $row['subcat_name'];?></option>
<?php
}
?>
</select>
</td>
</tr>
</table>
<html>
<body>