Question

我有阵列：

print_r($_SESSION['cart']); echo '<br>';
print_r($_SESSION['itemamount']); echo '<br>';
print_r($_SESSION['itemproduct'])

分别带有值：

Array ( [sugar] => 989.32 [lolli] => 77 [isi] => 0.99 ) 
Array ( [0] => 13 [1] => 11 [2] => 2 ) 
Array ( [0] => 12861.16 [1] => 847 [2] => 1.98 )

我正在尝试同时对所有值进行foreach循环，我能想到的只有：

foreach($_SESSION['cart'] as $data1 => $data2) 
foreach($_SESSION['itemamount'] as $amount1=>$amount2)
foreach($_SESSION['itemproduct'] as $product1=>$product2)
{echo $data1 . '   x' . $amount2,
'<ul> price:', $product2 . '<br></ul>';}

它有效，但它复制了输出9次。请帮助。

sugar x2
price:1978.64
sugar x2
price:847
sugar x2
price:1.98
sugar x11
price:1978.64
sugar x11
price:847
sugar x11
price:1.98
sugar x2
price:1978.64
sugar x2
price:847
sugar x2
price:1.98
lolli x2
price:1978.64
lolli x2
price:847
lolli x2
price:1.98
lolli x11
price:1978.64
lolli x11
price:847
lolli x11
price:1.98
lolli x2
price:1978.64
lolli x2
price:847
lolli x2
price:1.98
isi x2
price:1978.64
isi x2
price:847
isi x2
price:1.98
isi x11
price:1978.64
isi x11
price:847
isi x11
price:1.98
isi x2
price:1978.64
isi x2
price:847
isi x2
price:1.98

Answer 1

假设所有阵列的大小相同，请使用MultipleIterator：

$i = new MultipleIterator;
$i->attachIterator(new ArrayIterator($cart));
$i->attachIterator(new ArrayIterator($amount));
$i->attachIterator(new ArrayIterator($product));

foreach ($i as $value) {
    $keys = $i->key();
    echo $keys[0]; // 'sugar'
    echo $keys[1]; // 0
    echo $keys[2]; // 0

    echo $value[0]; // 989.32
    echo $value[1]; // 13
    echo $value[2]; // 12861.16
}

评论中只给出了第一次迭代的结果。

Answer 2

我想以下内容应该会给你想要的结果。

$counter = 0;
foreach($_SESSION['cart'] as $data1 => $data2){
   echo "{$data1} x {$_SESSION['itemamount'][$counter]}";
   echo "<ul>price: {$_SESSION['itemproduct'][$counter]}</ul>";
   $counter++;
}

如果没有，请告诉我。

连续输出不同数组的几个值

2 个答案: