.....
{
...mysql_connection(....);
...mysql_select_db(........);
....mysql_query(.......);
....mysql_fetch_assoc();
while..
....
print"\n<tr>
<td>{$product["description"]}</td>
<td>{$product["details"]}</td>
<td>{$product["price"]}</td>
</tr>\n";
}
...

{
print"\n<tr>
<td><input type="text" value='{$product["description"]}' /></td>
.......
</tr>\n";
}

......
{
echo'<tr>
<td>'.$product['counterid'].'</td>
<td><input type="text" value='.$product['description'].'></td>
<td><input type="text" value='.$product['details'].'></td>
<td><input type="number" value='.$product['price'].'></td>
<td><input type="date" value='.$product['saledate'].'></td>

</tr>';
}
......