php数组被foreach搞砸了

Question

可能重复：
当我两次迭代这个数组(通过引用，通过值(时，为什么PHP会覆盖值

我得到了一个数组，如果我打印它，它看起来像：

Array
(
    [0] => Array
        (
            [0] => 13
            [product_id] => 13
            [1] => 1
            [account_id] => 1
            [vat type] => 0
            [vat included] => 0
            [price] => 3
            [unit] => test3
            [product number] => 3
        )
    [1] => Array
        (
            [0] => 12
            [product_id] => 12
            [1] => 1
            [account_id] => 1
            [vat type] => 1
            [vat included] => 0
            [price] => 2
            [unit] => test2
            [product number] => 2
        )
    [2] => Array
        (
            [0] => 11
            [product_id] => 11
            [1] => 1
            [account_id] => 1
            [vat type] => 2
            [vat included] => 0
            [price] => 1
            [unit] => test1
            [product number] => 1
        )
)

现在，当我用foreach循环遍历它时，会发生一些奇怪的事情。当我打印foreach循环中的每个子数组时，它看起来像：

Array
(
    [0] => 13
    [product_id] => 13
    [1] => 1
    [account_id] => 1
    [vat type] => 0
    [vat included] => 0
    [price] => 3
    [unit] => test3
    [product number] => 3
)
Array
(
    [0] => 12
    [product_id] => 12
    [1] => 1
    [account_id] => 1
    [vat type] => 1
    [vat included] => 0
    [price] => 2
    [unit] => test2
    [product number] => 2
)
Array
(
    [0] => 12
    [product_id] => 12
    [1] => 1
    [account_id] => 1
    [vat type] => 1
    [vat included] => 0
    [price] => 2
    [unit] => test2
    [product number] => 2
)

注意第3个条目。这对我来说是个谜。有人知道为什么会发生这种事吗？

Answer 1

decze的注释基本上解决了这个问题。我用过：

foreach($products as &$product){

然后在$product中添加了一些条目。替换为：

foreach($products as $key=>$product){

修改$products[$key]解决了问题

感谢=D