使用substr将PHP添加到数组

我有点奇怪的问题。 我通过邮局发送了数据：

Array
(
    [test_amount_9] => 9
    [sell_cost_9] => 102.41
    [cost_quote_9] => 2253.02
    [test_amount_10] => 10
    [sell_cost_10] => 13.68
    [cost_quote_10] => 451.44
    [q] => /portal/orders/create-commerical-offer
)

然后我有一个foreach，它循环遍历每个项并使用substr测试前4个字符，如果是，则将其添加到数组中

$items = array();
        foreach($input as $item => $key) {
            // if first 4 chars are sell, remove sell_cost_ and save the ID
            if(substr($item, 0, 4) == 'sell') {
                $id = str_replace(substr($item, 0, 10), '', $item);
                $cost = $key;

                $items[$id] = array(
                    'id' => $id,
                    'sell_cost' => $cost
                );

                // if first 4 chars are cost, add to array
            } elseif(substr($item, 0, 4) == 'cost') {
                $id = str_replace(substr($item, 0, 11), '', $item);
                $items[$id]['price_per_case'] = $key;

                // add amount to array
            } elseif(substr($item, 0, 4) == 'test') {
                $id = str_replace(substr($item, 0, 12), '', $item);
                $items[$id]['amount'] = 'sdadassda';
                //$items[$id]['amount'] = $key;
                //$items['shouldbe'][] = array($item => $key);
            } else {
                $items['unknown'][] = array($item => $key);
            }
        }

前两个substr有效，我得到了这个结果

Array
(
    [9] => Array
        (
            [id] => 9
            [sell_cost] => 102.41
            [price_per_case] => 2253.02
        )

    [10] => Array
        (
            [id] => 10
            [sell_cost] => 13.68
            [price_per_case] => 451.44
        )

    [unknown] => Array
        (
            [0] => Array
                (
                    [q] => /portal/orders/create-commerical-offer
                )

        )

)

我不知道这笔钱要花在哪里。我尝试过更改名称（因此使用前缀test），但数据似乎消失了。

---

谢谢。

当您计算成本时，$items数组将被覆盖（并且您在重置cost代码中的数组之前处理金额）

这将起作用（我把数量放在末尾而不是开头）

编辑：这是您在“成本”中重置数组的代码（添加金额后，因此此处删除金额）：

---

如果将数组项的键转换为数组，如$itemArr=explode（“”，$itemKey），则会有更好的方法来处理它们。 例如，id将是$id=$itemArr[count（$itemArr）-1]，而不是像这样进行比较：substr（$item，0，4）=='cost'，您可以这样做：$itemArr[0]=='cost'，而不必知道$item的长度限制

        $items = array();
        foreach ($input as $item => $key) {
            $itemArr = explode('_', $item);
            $id = $itemArr[count($itemArr)-1];
            switch ($itemArr[0]) {
            case 'sell':
                $items[$id] = array(
                     'id' => $id,
                     'sell_cost' => $key,
                );
            break;
            case 'cost':
                $items[$id] = array(
                     'id' => $id,
                     'price_per_case' => $key,
                );
            break;
            case 'test':
                $items[$id] = array(
                     'id' => $id,
                     'amount' => $key,
                );
            break;
            default:
                $items['unknown'] = array(
                     $item => $key,
                );
            break;
            }
        }

---

要意识到，如果您有多个未知项目，您将只拥有最后一个。

我不知道问题出在哪里。在ELSE子句中有'q'，它执行它应该执行的操作？数组缺少金额，当前应为$items[$id]['amount']='sdadassda'；另外，“q”是由Laravel添加的。但是您没有任何输入数据会在ifelse子句中包含amount？没有一个数组键以“test”开头？“test\u amount\u 9”和“test\u amount\u 10”都可以。它们不会添加到数组中，也不会添加到“未知”数组中。太简单了。我在每一步中都会抛出一条isset语句，以确保它不会被覆盖。这永远是最简单的解决办法，嗯？谢谢

$items[$id] = array(
  'id' => $id,
  'sell_cost' => $cost
);

It's very straight $items array is overwritten, to avoid this Just set $items as multidimensional ARRAY, it won't overwrite.

$input =Array
(
    'test_amount_9' => 9,
    'sell_cost_9' => 102.41,
    'cost_quote_9' => 2253.02,
    'test_amount_10' => 10,
    'sell_cost_10' => 13.68,
    'cost_quote_10' => 451.44,
    'q' => '/portal/orders/create-commerical-offer'
);
$items = array();
        foreach($input as $item => $key) {
            // if first 4 chars are sell, remove sell_cost_ and save the ID
            if(substr($item, 0, 4) == 'sell') {
                $id = str_replace(substr($item, 0, 10), '', $item);
                $cost = $key;

                $items[][$id] = array(
                    'id' => $id,
                    'sell_cost' => $cost
                );

                // if first 4 chars are cost, add to array
            } elseif(substr($item, 0, 4) == 'cost') {
                $id = str_replace(substr($item, 0, 11), '', $item);
                $items[][$id]['price_per_case'] = $key;

                // add amount to array
            } elseif(substr($item, 0, 4) == 'test') {
                $id = str_replace(substr($item, 0, 12), '', $item);
                $items[][$id]['amount'] = 'sdadassda';
                //$items[][$id]['amount'] = $key;
                //$items[]['shouldbe'][] = array($item => $key);
            } else {
                $items[]['unknown'][] = array($item => $key);
            }
        }




**Output**

Array
(
    [0] => Array
        (
            [9] => Array
                (
                    [amount] => sdadassda
                )

        )

    [1] => Array
        (
            [9] => Array
                (
                    [id] => 9
                    [sell_cost] => 102.41
                )

        )

    [2] => Array
        (
            [9] => Array
                (
                    [price_per_case] => 2253.02
                )

        )

    [3] => Array
        (
            [10] => Array
                (
                    [amount] => sdadassda
                )

        )

    [4] => Array
        (
            [10] => Array
                (
                    [id] => 10
                    [sell_cost] => 13.68
                )

        )

    [5] => Array
        (
            [10] => Array
                (
                    [price_per_case] => 451.44
                )

        )

    [6] => Array
        (
            [unknown] => Array
                (
                    [0] => Array
                        (
                            [q] => /portal/orders/create-commerical-offer
                        )

                )

        )

)


Hope It Hepls!!

If you want to format it according to you just do a foreach()

        $items = array();
        foreach ($input as $item => $key) {
            $itemArr = explode('_', $item);
            $id = $itemArr[count($itemArr)-1];
            switch ($itemArr[0]) {
            case 'sell':
                $items[$id] = array(
                     'id' => $id,
                     'sell_cost' => $key,
                );
            break;
            case 'cost':
                $items[$id] = array(
                     'id' => $id,
                     'price_per_case' => $key,
                );
            break;
            case 'test':
                $items[$id] = array(
                     'id' => $id,
                     'amount' => $key,
                );
            break;
            default:
                $items['unknown'] = array(
                     $item => $key,
                );
            break;
            }
        }