PHP：向表单添加价格

Question

I am trying to edit my PHP script so the prices I have added to the form will be added as a total when the user clicks submit but I am not sure how to add up the values.

HTML

<select name="service">
<option value="Yes" value="10">Yes £10</option>
<option value="No">No</option>
</select>

<form method="post" action="example.php">
<select name="booking">
<option value="Double Room" value="50">Double Room £50</option>
<option value="Twin Room" value="70">Twin Room £70</option>
<option value="Family Room" value="100">Family room £100</option>
</select>
<br /> <br />
<input type="submit" value="submit" action="example.php" name="submit"><br />
</form>

PHP

You have choosen the <?php echo $_POST["booking"]; ?>

Answer 1

You're defined twice the value attribute of the options tags and this is an error .

If you want to access the price, just set the price as a single value attribute.

A better way would be to identify each row with an ID and having a corresponding array in PHP to get both the name and the price (either as an array again, or better as an object).

Hope it helps