I have a for with a select dropdown option. I want to get the value that is selected and put it into a hidden input value. I'm trying this at the minute -
echo '<form method="post" action="cart_update.php">';
echo"<select name='qty'>
<option value=1>1</option>
<option value=2>2</option>
<option value=3>3</option>
<option value=4>4</option>
<option value=5>5</option>
<option value=6>6</option>
<option value=7>7</option>
<option value=8>8</option>
<option value=9>9</option>
<option value=10>10</option>
</select>";
echo '<input type="hidden" name="product_qty" value="'.$_GET['qty'].'" />';
echo"</form>;
When I submit this to cart-update.php it tells me that qty is an undefined index on the hidden input line.
Can anyone see the problem?