php script error gving wrong output
I am having a little trouble regarding working out 20% of a total when testing I select it so the value of the 'basket' is 60, I would like it to display 60 (which it does) but then it should work out 60 + 20% which should give the reading 72 but insted it gives 144 I was wondering if you peeps could help
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Feet First</title>
<link href="css/style.css" rel="stylesheet" type="text/css" />
</head>
<body>
<!-- The container holds the entire website everything else is 'contained' within the container -->
<div class="container">
<div class="header">
<img src="header.png" alt="logo" width="892" height="142" id="logo" />
</div>
<!-- The content divis the Secondary layer which contains the content of the webiste such as text and images. -->
<div class="content">
<!-- Navi is what hols the navigation links at the top of the page -->
<div class="navi">
<!-- this is 开发者_JAVA百科the unordered list for the menu items -->
<ul id="menu">
<li><a href="\index.html">Home</a></li>
<li><a href="\trainers.html">Trainers</a></li>
<li><a href="\order.html" >Order</a></li>
<li><a href="\credits.html">Credits</a></li>
<li></li>
<li></li>
</ul>
</div>
<div class="content"></div>
<h1>Thank you for your order!</h1>
<?php
// sents the value of the items
$extraValues = array(
'Laces' => 5,
'Shoe Polish' => 10,
'In-souls' => 15
);
$trainerValues = array(
'Lacoste' => 50,
'K-Swiss' => 45,
'Puma' => 59,
'Converse' => 65
);
if(isset($_POST['firstname'])){
$firstname = $_POST['firstname'];
echo " $firstname ";
}
if(isset($_POST['lastname'])){
$lastname = $_POST['lastname'];
echo "$lastname <br />\n";
}
if(isset($_POST['add1'])){
$add1 = $_POST['add1'];
echo "$add1 <br />\n";
}
if(isset($_POST['add2'])){
$add2 = $_POST['add2'];
echo "$add2 <br />\n";
}
if(isset($_POST['postcode'])){
$postcode = $_POST['postcode'];
echo "$postcode <br />\n";
}
if(isset($_POST['email'])){
$email = $_POST['email'];
echo "Contact Email Address $email <br />\n";
}
if(isset($_POST['telephone'])){
$telephone = $_POST['telephone'];
echo "Contact Telephone Number $telephone <br />\n";
}
if(isset($_POST['contact'])){
$contact = $_POST['contact'];
echo "You would like to be contacted by $contact <br />\n";
}
if(isset($_POST['trainers'])){
$trainers = $_POST['trainers'];
echo "The trainers you would like are $trainers <br />\n";
}
if(isset($_POST['extras'])){
$extras = $_POST['extras'];
echo "The extras you would like are $extras <br />\n";
}
$extraCost = 0;
$trainerCost= 0;
$totalCost= 0;
$totalCostV= 0;
$extra = $_POST['extras'];
if (array_key_exists($extra, $extraValues)) {
$extraCost = (float) $extraValues[$extra];
echo "The cost of your extras are £ $extraCost<br />\n";
}
$trainer = $_POST['trainers'];
if (array_key_exists($trainer, $trainerValues)) {
$trainerCost = (float) $trainerValues[$trainer];
echo "The cost of your Trainers are £ $trainerCost<br />\n";
}
$totalCost = round($extraCost+$trainerCost+$totalCost);
echo "The cost of your Trainers are (Excluding 20% tax) £ $totalCost<br />\n";
$totalCostV = round(($extraCost+$trainerCost+$totalCost)*1.20,2);
echo "The cost of your Trainers are (including 20% tax) £ $totalCostV<br />\n";
?>
</div>
<!-- Holds the foorter information -->
<div class="footer">
<p>© 2010 FeetFirst Uk Ltd </p>
</div>
</div>
</body>
Because, at the beginning your $totalCost = 0. Then it should run ok with this:
$totalCost = round($extraCost+$trainerCost+$totalCost);
echo "The cost of your Trainers are (Excluding 20% tax) £ $totalCost<br />\n";
$totalCostV = round($totalCost*1.20,2); // this line is edited
echo "The cost of your Trainers are (including 20% tax) £ $totalCostV<br />\n";
But I think it should look like:
$totalCost = round($extraCost+$trainerCost); // this line is edited
echo "The cost of your Trainers are (Excluding 20% tax) £ $totalCost<br />\n";
$totalCostV = round($totalCost*1.20,2); // this line is edited
echo "The cost of your Trainers are (including 20% tax) £ $totalCostV<br />\n";
$totalCost = 0
...
$totalCost = round($extraCost+$trainerCost+$totalCost);
=> 60
...
$totalCostV = round(($extraCost+$trainerCost+$totalCost)*1.20,2);
= round(($extraCost+$trainerCost+$extraCost+$trainerCost)*1.20,2);
= round(($extraCost+$trainerCost)*2*1.20,2);
= 144
I think you have an exta +$totalCost in $totalCostV
Might be a conversion problem. Sounds like it calculates *2 instead of *1.2. You could try putting a (float) conversion before those calucations.
Because JS floats are quite inaccurate it might also be an idea to calculate everything in cents and then just divide by 100 when outputting.
加载中,请稍侯......
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