PHP 比较 2 个数组（Mac donalds 和汉堡王）
PHP compare 2 arrays (Mac donalds and Burger King)
我要做一个MC和BK产品的比较网站。
http://informaticaphp.net84.net/home.php <- 这就是我的情况。
这是代码：
<html>
<head>
<link rel="stylesheet" type="text/css" href="style1.css" />
</head>
<?php
if(isset($_POST['formSubmit']))
{
$breakfastMC = $_POST['BreakfastMC'];
$breakfastBK = $_POST['BreakfastBK'];
if(empty($breakfastMC))
{
echo("<p>You didn't select any food.</p>\n");
}
else
{
$MC = count($breakfastMC);
echo("<p>You selected $MC: ");
for($i=0; $i < $MC; $i++)
{
echo($breakfastMC[$i] . " ");
}
}
if(empty($breakfastBK))
{
echo("<p>You didn't select any food.</p>\n");
}
else
{
$BK = count($breakfastBK);
echo("<p>You selected $BK door(s): ");
for($i=0; $i < $BK; $i++)
{
echo($breakfastBK[$i] . " ");
}
}
//$sumBK = array_sum($BK)
//$sumMC = array_sum($MC)
if ($sumBK = $sumMC){
echo 'equal';
}
function IsChecked($chkname,$value)
{
if(!empty($_POST[$chkname]))
{
foreach($_POST[$chkname] as $chkval)
{
if($chkval == $value)
{
return true;
}
}
}
return false;
}
}
?>
<form action="<?php echo htmlentities($_SERVER['PHP_SELF']); ?>" method="post">
<div class="MC">
<h2><b>Mc Donalds</b></h2>
<br />
<b>Ontbijt:</b>
<br />
<input type="checkbox" name="BreakfastMC[]" value="2"> Croissant met jam en boter<br />
<input type="checkbox" name="BreakfastMC[]" value="3"> Pancakes met stroop <br />
<input type="checkbox" name="BreakfastMC[]" value="3"> McMuffin met Bacon en Ei <br />
<input type="checkbox" name="BreakfastMC[]" value="4"> McMuffin met Kaas <br /> <br />
<input type="checkbox" name="DrinksMC1" value="2"> 2x Versgemalen koffie <br />
<input type="checkbox" name="DrinksMC2" value="2"> 2x Thee <br />
<b>Lunch:</b>
<br />
<input type="checkbox" name="LunchMC1" value="LunchMD1"> Hamburger <br />
<input type="checkbox" name="LunchMC2" value="LunchMD2"> Cheeseburger <br />
<input type="checkbox" name="LunchMC3" value="LunchMD3"> 1955 met bacon <br />
<input type="checkbox" name="LunchMC4" value="LunchMD4"> McKroket <br /> <br />
<input type="checkbox" name="DrinksMC3" value="DrinksMD3"> Coca Cola Middel (0,4L) <br />
<input type="checkbox" name="DrinksMC4" value="DrinksMD4"> Coca Cola Groot (0,5L) <br />
<b>Avondeten:</b>
<br />
<input type="checkbox" name="DinerMC1" value="DinerMD1"> Big Mac <br />
<input type="checkbox" name="DinerMC2" value="DinerMD2"> Chicken Sensation <br />
<input type="checkbox" name="DinerMC3" value="DinerMD3"> Chili Chicken <br />
<input type="checkbox" name="DinerMC4" value="DinerMD4"> Big Tasty met bacon <br /> <br />
<input type="checkbox" name="DrinksMC5" value="DrinkeMD5"> Coca Cola Mega (0,7L) <br />
<input type="checkbox" name="DrinksMC6" value="DrinksMD6"> Coca Cola Groot (0,5L) <br />
<br />
</div>
<div class="BK">
<h2><b>Burger King </b></h2>
<b>Ontbijt:</b>
<br />
<input type="checkbox" name="BreakfastBK[]" value="3"> Mini Pancakes (9stuks) €1,50 364kcal<br />
<input type="checkbox" name="BreakfastBK[]" value="1.50"> Toastie €1,50 359 kcal<br />
<input type="checkbox" name="BreakfastBK[]" value="3.00"> Breakfast Burger €3,00 825 kcal <br />
<input type="checkbox" name="BreakfastBK[]" value="2.75"> Breakfast Wrap €2,75 441 kcal<br /> <br />
<input type="checkbox" name="DrinksBK1" value="3.80"> 2xKoffie €3,80 0 kcal<br />
<input type="checkbox" name="DrinksBK2" value="2.25"> 1 flesje Chaudfontaine (500 ml) €2,25 0 kcal<br />
<b>Lunch:</b>
<br />
<input type="checkbox" name="LunchBK1" value="4.55"> Grilled Chicken Wrap €4,55 344 kcal<br />
<input type="checkbox" name="LunchBK2" value="1.95"> Cheeseburger €1,95 338 kcal<br />
<input type="checkbox" name="LunchBK3" value="5.75"> Tripple Whopper €5,75 1114 kcal<br />
<input type="checkbox" name="LunchBK4" value="4.75"> Big King XXL €4,75 1022 kcal<br /> <br />
<input type="checkbox" name="DrinksBK3" value="2.00"> Coca Cola M (400 ml) €2,00 168 kcal<br />
<input type="checkbox" name="DrinksBK4" value="2.50"> Coca Cola XXL (750 ml) €2,50 315 kcal<br />
<b>Avondeten:</b>
<br />
<input type="checkbox" name="DinerBK1" value="DinerBK1"> Double Cheeseburger XXL €4,75 502 kcal <br />
<input type="checkbox" name="DinerBK2" value="DinerBK2"> Grilled Chicken BBQ €5,25 707 kcal<br />
<input type="checkbox" name="DinerBK3" value="DinerBK3"> Whopper Jr. €3,25 362 kcal <br />
<input type="checkbox" name="DinerBK4" value="DinerBK4"> Big King €3,75 552 kcal <br /> <br />
<input type="checkbox" name="DrinksBK5" value="DrinksBK5"> Coca Cola M (400 ml) €2,25 210 kcal <br />
<input type="checkbox" name="DrinksBK6" value="DrinksBK6"> Coca Cola XXL (750 ml) €2,50 315 kcal<br />
</div>
<div class="Button">
<input type="submit" name="formSubmit" value="submit">
</div>
</form>
</body>
</html>
现在我要做的是将区域内所有检查的值进行总和，然后比较BK和MC的价格差异
这个：
//$sumBK = array_sum($BK)
//$sumMC = array_sum($MC)
if ($sumBK = $sumMC){
echo 'equal';
不起作用所以我有点无能:(
通过做：
if ($sumBK = $sumMC){
echo 'equal';
}
您正在将 $sumMC 的值分配给 $sumBK，而不是比较值。改用它，您的代码应该可以工作：
if ($sumBK === $sumMC){
echo 'equal';
}
我对您的代码进行了必要的更改以使其正常工作并按照您的意愿进行操作。在这里，更改由注释箭头“// <=======”指出，尝试一下并告诉我：
<html>
<head>
<link rel="stylesheet" type="text/css" href="style1.css" />
</head>
<?php
if(isset($_POST['formSubmit']))
{
$breakfastMC = $_POST['BreakfastMC'];
$breakfastBK = $_POST['BreakfastBK'];
$sumMC = 0; // <================================================================
$sumBK = 0; // <================================================================
if(empty($breakfastMC))
{
echo("<p>You didn't select any food in MC.</p>\n"); // <=========
}
else
{
$MC = count($breakfastMC);
echo("<p>You selected for MC = $MC:<br/>"); // <=========
for($i=0; $i < $MC; $i++)
{
echo( "Price = " . $breakfastMC[$i] . "<br/>"); // <====================
$sumMC += floatval( $breakfastMC[$i] ); // <============================
}
echo "Total MC = " . $sumMC . "<br/>"; // <====================================
}
if(empty($breakfastBK))
{
echo("<p>You didn't select any food in BK.</p>\n"); // <====================
}
else
{
$BK = count($breakfastBK);
echo("<p>You selected for BK = $BK:<br/>"); // <============================
for($i=0; $i < $BK; $i++)
{
echo( "Price = " . $breakfastBK[$i] . "<br/>"); // <====================
$sumBK += floatval( $breakfastBK[$i] ); // <============================
}
echo "Total BK = " . $sumBK . "<br/>"; // <====================================
}
//$sumBK = array_sum($BK)
//$sumMC = array_sum($MC)
if ( $sumBK == $sumMC ) // <===========================================================
echo 'equal'; // <==================================================================
else if ( $sumBK > $sumMC ) // <=======================================================
echo 'BK more expensive than MC'; // <========================================
else echo 'MC more expensive than BK'; // <========================================
function IsChecked($chkname,$value)
{
if(!empty($_POST[$chkname]))
{
foreach($_POST[$chkname] as $chkval)
{
if($chkval == $value)
{
return true;
}
}
}
return false;
}
}
?>
<form action="<?php echo htmlentities($_SERVER['PHP_SELF']); ?>" method="post">
<div class="MC">
<h2><b>Mc Donalds</b></h2>
<br />
<b>Ontbijt:</b>
<br />
<input type="checkbox" name="BreakfastMC[]" value="2"> Croissant met jam en boter<br />
<input type="checkbox" name="BreakfastMC[]" value="3"> Pancakes met stroop <br />
<input type="checkbox" name="BreakfastMC[]" value="3"> McMuffin met Bacon en Ei <br />
<input type="checkbox" name="BreakfastMC[]" value="4"> McMuffin met Kaas <br /> <br />
<input type="checkbox" name="DrinksMC1" value="2"> 2x Versgemalen koffie <br />
<input type="checkbox" name="DrinksMC2" value="2"> 2x Thee <br />
<b>Lunch:</b>
<br />
<input type="checkbox" name="LunchMC1" value="LunchMD1"> Hamburger <br />
<input type="checkbox" name="LunchMC2" value="LunchMD2"> Cheeseburger <br />
<input type="checkbox" name="LunchMC3" value="LunchMD3"> 1955 met bacon <br />
<input type="checkbox" name="LunchMC4" value="LunchMD4"> McKroket <br /> <br />
<input type="checkbox" name="DrinksMC3" value="DrinksMD3"> Coca Cola Middel (0,4L) <br />
<input type="checkbox" name="DrinksMC4" value="DrinksMD4"> Coca Cola Groot (0,5L) <br />
<b>Avondeten:</b>
<br />
<input type="checkbox" name="DinerMC1" value="DinerMD1"> Big Mac <br />
<input type="checkbox" name="DinerMC2" value="DinerMD2"> Chicken Sensation <br />
<input type="checkbox" name="DinerMC3" value="DinerMD3"> Chili Chicken <br />
<input type="checkbox" name="DinerMC4" value="DinerMD4"> Big Tasty met bacon <br /> <br />
<input type="checkbox" name="DrinksMC5" value="DrinkeMD5"> Coca Cola Mega (0,7L) <br />
<input type="checkbox" name="DrinksMC6" value="DrinksMD6"> Coca Cola Groot (0,5L) <br />
<br />
</div>
<div class="BK">
<h2><b>Burger King </b></h2>
<b>Ontbijt:</b>
<br />
<input type="checkbox" name="BreakfastBK[]" value="3"> Mini Pancakes (9stuks) €1,50 364kcal<br />
<input type="checkbox" name="BreakfastBK[]" value="1.50"> Toastie €1,50 359 kcal<br />
<input type="checkbox" name="BreakfastBK[]" value="3.00"> Breakfast Burger €3,00 825 kcal <br />
<input type="checkbox" name="BreakfastBK[]" value="2.75"> Breakfast Wrap €2,75 441 kcal<br /> <br />
<input type="checkbox" name="DrinksBK1" value="3.80"> 2xKoffie €3,80 0 kcal<br />
<input type="checkbox" name="DrinksBK2" value="2.25"> 1 flesje Chaudfontaine (500 ml) €2,25 0 kcal<br />
<b>Lunch:</b>
<br />
<input type="checkbox" name="LunchBK1" value="4.55"> Grilled Chicken Wrap €4,55 344 kcal<br />
<input type="checkbox" name="LunchBK2" value="1.95"> Cheeseburger €1,95 338 kcal<br />
<input type="checkbox" name="LunchBK3" value="5.75"> Tripple Whopper €5,75 1114 kcal<br />
<input type="checkbox" name="LunchBK4" value="4.75"> Big King XXL €4,75 1022 kcal<br /> <br />
<input type="checkbox" name="DrinksBK3" value="2.00"> Coca Cola M (400 ml) €2,00 168 kcal<br />
<input type="checkbox" name="DrinksBK4" value="2.50"> Coca Cola XXL (750 ml) €2,50 315 kcal<br />
<b>Avondeten:</b>
<br />
<input type="checkbox" name="DinerBK1" value="DinerBK1"> Double Cheeseburger XXL €4,75 502 kcal <br />
<input type="checkbox" name="DinerBK2" value="DinerBK2"> Grilled Chicken BBQ €5,25 707 kcal<br />
<input type="checkbox" name="DinerBK3" value="DinerBK3"> Whopper Jr. €3,25 362 kcal <br />
<input type="checkbox" name="DinerBK4" value="DinerBK4"> Big King €3,75 552 kcal <br /> <br />
<input type="checkbox" name="DrinksBK5" value="DrinksBK5"> Coca Cola M (400 ml) €2,25 210 kcal <br />
<input type="checkbox" name="DrinksBK6" value="DrinksBK6"> Coca Cola XXL (750 ml) €2,50 315 kcal<br />
</div>
<div class="Button">
<input type="submit" name="formSubmit" value="submit">
</div>
</form>
</body>
</html>
您离目标很近了。首先，总变量"sumMC"和"sumBK"从一开始就被初始化并在"for"语句中使用，使用“
”提高了视觉效果。
我要做一个MC和BK产品的比较网站。
http://informaticaphp.net84.net/home.php <- 这就是我的情况。
这是代码：
<html>
<head>
<link rel="stylesheet" type="text/css" href="style1.css" />
</head>
<?php
if(isset($_POST['formSubmit']))
{
$breakfastMC = $_POST['BreakfastMC'];
$breakfastBK = $_POST['BreakfastBK'];
if(empty($breakfastMC))
{
echo("<p>You didn't select any food.</p>\n");
}
else
{
$MC = count($breakfastMC);
echo("<p>You selected $MC: ");
for($i=0; $i < $MC; $i++)
{
echo($breakfastMC[$i] . " ");
}
}
if(empty($breakfastBK))
{
echo("<p>You didn't select any food.</p>\n");
}
else
{
$BK = count($breakfastBK);
echo("<p>You selected $BK door(s): ");
for($i=0; $i < $BK; $i++)
{
echo($breakfastBK[$i] . " ");
}
}
//$sumBK = array_sum($BK)
//$sumMC = array_sum($MC)
if ($sumBK = $sumMC){
echo 'equal';
}
function IsChecked($chkname,$value)
{
if(!empty($_POST[$chkname]))
{
foreach($_POST[$chkname] as $chkval)
{
if($chkval == $value)
{
return true;
}
}
}
return false;
}
}
?>
<form action="<?php echo htmlentities($_SERVER['PHP_SELF']); ?>" method="post">
<div class="MC">
<h2><b>Mc Donalds</b></h2>
<br />
<b>Ontbijt:</b>
<br />
<input type="checkbox" name="BreakfastMC[]" value="2"> Croissant met jam en boter<br />
<input type="checkbox" name="BreakfastMC[]" value="3"> Pancakes met stroop <br />
<input type="checkbox" name="BreakfastMC[]" value="3"> McMuffin met Bacon en Ei <br />
<input type="checkbox" name="BreakfastMC[]" value="4"> McMuffin met Kaas <br /> <br />
<input type="checkbox" name="DrinksMC1" value="2"> 2x Versgemalen koffie <br />
<input type="checkbox" name="DrinksMC2" value="2"> 2x Thee <br />
<b>Lunch:</b>
<br />
<input type="checkbox" name="LunchMC1" value="LunchMD1"> Hamburger <br />
<input type="checkbox" name="LunchMC2" value="LunchMD2"> Cheeseburger <br />
<input type="checkbox" name="LunchMC3" value="LunchMD3"> 1955 met bacon <br />
<input type="checkbox" name="LunchMC4" value="LunchMD4"> McKroket <br /> <br />
<input type="checkbox" name="DrinksMC3" value="DrinksMD3"> Coca Cola Middel (0,4L) <br />
<input type="checkbox" name="DrinksMC4" value="DrinksMD4"> Coca Cola Groot (0,5L) <br />
<b>Avondeten:</b>
<br />
<input type="checkbox" name="DinerMC1" value="DinerMD1"> Big Mac <br />
<input type="checkbox" name="DinerMC2" value="DinerMD2"> Chicken Sensation <br />
<input type="checkbox" name="DinerMC3" value="DinerMD3"> Chili Chicken <br />
<input type="checkbox" name="DinerMC4" value="DinerMD4"> Big Tasty met bacon <br /> <br />
<input type="checkbox" name="DrinksMC5" value="DrinkeMD5"> Coca Cola Mega (0,7L) <br />
<input type="checkbox" name="DrinksMC6" value="DrinksMD6"> Coca Cola Groot (0,5L) <br />
<br />
</div>
<div class="BK">
<h2><b>Burger King </b></h2>
<b>Ontbijt:</b>
<br />
<input type="checkbox" name="BreakfastBK[]" value="3"> Mini Pancakes (9stuks) €1,50 364kcal<br />
<input type="checkbox" name="BreakfastBK[]" value="1.50"> Toastie €1,50 359 kcal<br />
<input type="checkbox" name="BreakfastBK[]" value="3.00"> Breakfast Burger €3,00 825 kcal <br />
<input type="checkbox" name="BreakfastBK[]" value="2.75"> Breakfast Wrap €2,75 441 kcal<br /> <br />
<input type="checkbox" name="DrinksBK1" value="3.80"> 2xKoffie €3,80 0 kcal<br />
<input type="checkbox" name="DrinksBK2" value="2.25"> 1 flesje Chaudfontaine (500 ml) €2,25 0 kcal<br />
<b>Lunch:</b>
<br />
<input type="checkbox" name="LunchBK1" value="4.55"> Grilled Chicken Wrap €4,55 344 kcal<br />
<input type="checkbox" name="LunchBK2" value="1.95"> Cheeseburger €1,95 338 kcal<br />
<input type="checkbox" name="LunchBK3" value="5.75"> Tripple Whopper €5,75 1114 kcal<br />
<input type="checkbox" name="LunchBK4" value="4.75"> Big King XXL €4,75 1022 kcal<br /> <br />
<input type="checkbox" name="DrinksBK3" value="2.00"> Coca Cola M (400 ml) €2,00 168 kcal<br />
<input type="checkbox" name="DrinksBK4" value="2.50"> Coca Cola XXL (750 ml) €2,50 315 kcal<br />
<b>Avondeten:</b>
<br />
<input type="checkbox" name="DinerBK1" value="DinerBK1"> Double Cheeseburger XXL €4,75 502 kcal <br />
<input type="checkbox" name="DinerBK2" value="DinerBK2"> Grilled Chicken BBQ €5,25 707 kcal<br />
<input type="checkbox" name="DinerBK3" value="DinerBK3"> Whopper Jr. €3,25 362 kcal <br />
<input type="checkbox" name="DinerBK4" value="DinerBK4"> Big King €3,75 552 kcal <br /> <br />
<input type="checkbox" name="DrinksBK5" value="DrinksBK5"> Coca Cola M (400 ml) €2,25 210 kcal <br />
<input type="checkbox" name="DrinksBK6" value="DrinksBK6"> Coca Cola XXL (750 ml) €2,50 315 kcal<br />
</div>
<div class="Button">
<input type="submit" name="formSubmit" value="submit">
</div>
</form>
</body>
</html>
现在我要做的是将区域内所有检查的值进行总和，然后比较BK和MC的价格差异
这个：
//$sumBK = array_sum($BK)
//$sumMC = array_sum($MC)
if ($sumBK = $sumMC){
echo 'equal';
不起作用所以我有点无能:(
通过做：
if ($sumBK = $sumMC){
echo 'equal';
}
您正在将 $sumMC 的值分配给 $sumBK，而不是比较值。改用它，您的代码应该可以工作：
if ($sumBK === $sumMC){
echo 'equal';
}
我对您的代码进行了必要的更改以使其正常工作并按照您的意愿进行操作。在这里，更改由注释箭头“// <=======”指出，尝试一下并告诉我：
<html>
<head>
<link rel="stylesheet" type="text/css" href="style1.css" />
</head>
<?php
if(isset($_POST['formSubmit']))
{
$breakfastMC = $_POST['BreakfastMC'];
$breakfastBK = $_POST['BreakfastBK'];
$sumMC = 0; // <================================================================
$sumBK = 0; // <================================================================
if(empty($breakfastMC))
{
echo("<p>You didn't select any food in MC.</p>\n"); // <=========
}
else
{
$MC = count($breakfastMC);
echo("<p>You selected for MC = $MC:<br/>"); // <=========
for($i=0; $i < $MC; $i++)
{
echo( "Price = " . $breakfastMC[$i] . "<br/>"); // <====================
$sumMC += floatval( $breakfastMC[$i] ); // <============================
}
echo "Total MC = " . $sumMC . "<br/>"; // <====================================
}
if(empty($breakfastBK))
{
echo("<p>You didn't select any food in BK.</p>\n"); // <====================
}
else
{
$BK = count($breakfastBK);
echo("<p>You selected for BK = $BK:<br/>"); // <============================
for($i=0; $i < $BK; $i++)
{
echo( "Price = " . $breakfastBK[$i] . "<br/>"); // <====================
$sumBK += floatval( $breakfastBK[$i] ); // <============================
}
echo "Total BK = " . $sumBK . "<br/>"; // <====================================
}
//$sumBK = array_sum($BK)
//$sumMC = array_sum($MC)
if ( $sumBK == $sumMC ) // <===========================================================
echo 'equal'; // <==================================================================
else if ( $sumBK > $sumMC ) // <=======================================================
echo 'BK more expensive than MC'; // <========================================
else echo 'MC more expensive than BK'; // <========================================
function IsChecked($chkname,$value)
{
if(!empty($_POST[$chkname]))
{
foreach($_POST[$chkname] as $chkval)
{
if($chkval == $value)
{
return true;
}
}
}
return false;
}
}
?>
<form action="<?php echo htmlentities($_SERVER['PHP_SELF']); ?>" method="post">
<div class="MC">
<h2><b>Mc Donalds</b></h2>
<br />
<b>Ontbijt:</b>
<br />
<input type="checkbox" name="BreakfastMC[]" value="2"> Croissant met jam en boter<br />
<input type="checkbox" name="BreakfastMC[]" value="3"> Pancakes met stroop <br />
<input type="checkbox" name="BreakfastMC[]" value="3"> McMuffin met Bacon en Ei <br />
<input type="checkbox" name="BreakfastMC[]" value="4"> McMuffin met Kaas <br /> <br />
<input type="checkbox" name="DrinksMC1" value="2"> 2x Versgemalen koffie <br />
<input type="checkbox" name="DrinksMC2" value="2"> 2x Thee <br />
<b>Lunch:</b>
<br />
<input type="checkbox" name="LunchMC1" value="LunchMD1"> Hamburger <br />
<input type="checkbox" name="LunchMC2" value="LunchMD2"> Cheeseburger <br />
<input type="checkbox" name="LunchMC3" value="LunchMD3"> 1955 met bacon <br />
<input type="checkbox" name="LunchMC4" value="LunchMD4"> McKroket <br /> <br />
<input type="checkbox" name="DrinksMC3" value="DrinksMD3"> Coca Cola Middel (0,4L) <br />
<input type="checkbox" name="DrinksMC4" value="DrinksMD4"> Coca Cola Groot (0,5L) <br />
<b>Avondeten:</b>
<br />
<input type="checkbox" name="DinerMC1" value="DinerMD1"> Big Mac <br />
<input type="checkbox" name="DinerMC2" value="DinerMD2"> Chicken Sensation <br />
<input type="checkbox" name="DinerMC3" value="DinerMD3"> Chili Chicken <br />
<input type="checkbox" name="DinerMC4" value="DinerMD4"> Big Tasty met bacon <br /> <br />
<input type="checkbox" name="DrinksMC5" value="DrinkeMD5"> Coca Cola Mega (0,7L) <br />
<input type="checkbox" name="DrinksMC6" value="DrinksMD6"> Coca Cola Groot (0,5L) <br />
<br />
</div>
<div class="BK">
<h2><b>Burger King </b></h2>
<b>Ontbijt:</b>
<br />
<input type="checkbox" name="BreakfastBK[]" value="3"> Mini Pancakes (9stuks) €1,50 364kcal<br />
<input type="checkbox" name="BreakfastBK[]" value="1.50"> Toastie €1,50 359 kcal<br />
<input type="checkbox" name="BreakfastBK[]" value="3.00"> Breakfast Burger €3,00 825 kcal <br />
<input type="checkbox" name="BreakfastBK[]" value="2.75"> Breakfast Wrap €2,75 441 kcal<br /> <br />
<input type="checkbox" name="DrinksBK1" value="3.80"> 2xKoffie €3,80 0 kcal<br />
<input type="checkbox" name="DrinksBK2" value="2.25"> 1 flesje Chaudfontaine (500 ml) €2,25 0 kcal<br />
<b>Lunch:</b>
<br />
<input type="checkbox" name="LunchBK1" value="4.55"> Grilled Chicken Wrap €4,55 344 kcal<br />
<input type="checkbox" name="LunchBK2" value="1.95"> Cheeseburger €1,95 338 kcal<br />
<input type="checkbox" name="LunchBK3" value="5.75"> Tripple Whopper €5,75 1114 kcal<br />
<input type="checkbox" name="LunchBK4" value="4.75"> Big King XXL €4,75 1022 kcal<br /> <br />
<input type="checkbox" name="DrinksBK3" value="2.00"> Coca Cola M (400 ml) €2,00 168 kcal<br />
<input type="checkbox" name="DrinksBK4" value="2.50"> Coca Cola XXL (750 ml) €2,50 315 kcal<br />
<b>Avondeten:</b>
<br />
<input type="checkbox" name="DinerBK1" value="DinerBK1"> Double Cheeseburger XXL €4,75 502 kcal <br />
<input type="checkbox" name="DinerBK2" value="DinerBK2"> Grilled Chicken BBQ €5,25 707 kcal<br />
<input type="checkbox" name="DinerBK3" value="DinerBK3"> Whopper Jr. €3,25 362 kcal <br />
<input type="checkbox" name="DinerBK4" value="DinerBK4"> Big King €3,75 552 kcal <br /> <br />
<input type="checkbox" name="DrinksBK5" value="DrinksBK5"> Coca Cola M (400 ml) €2,25 210 kcal <br />
<input type="checkbox" name="DrinksBK6" value="DrinksBK6"> Coca Cola XXL (750 ml) €2,50 315 kcal<br />
</div>
<div class="Button">
<input type="submit" name="formSubmit" value="submit">
</div>
</form>
</body>
</html>
您离目标很近了。首先，总变量"sumMC"和"sumBK"从一开始就被初始化并在"for"语句中使用，使用“
”提高了视觉效果。