我們有一個(gè)自定義調(diào)度系統(tǒng)，其中有訂單，如果訂單中的總數(shù)量超過 2，那么我們需要將內(nèi)容拆分為兩個(gè)訂單。那么例如...訂單包含：物品A x2物品 B x2我需要將項(xiàng)目 B 移至第二個(gè)訂單。另一個(gè)例子是：物品 A x4我需要將 2 個(gè)項(xiàng)目移至第二個(gè)訂單，因此我在一個(gè)輸出中留下項(xiàng)目 A x2，在另一個(gè)輸出中保留相同的項(xiàng)目。我正在使用以下內(nèi)容循環(huán)遍歷訂單中的商品和數(shù)量。$total_products = array();foreach($products as $product){ $product_id = $product['sellable']['id']; $product_quantity = $product['quantity']; $product_price = $product['price_per_unit']; array_push($total_products, array($product_id, $product_quantity, $product_price));}我怎樣才能按該順序總計(jì)項(xiàng)目 - 一旦任何數(shù)量達(dá)到 2，我可以將它們移動(dòng)到第二個(gè)數(shù)組嗎？使用多個(gè)數(shù)組是最好的方法嗎？這是已生成的數(shù)組的示例（可以是變量）：Array( [0] => Array ( [0] => 39235995 [1] => 3 [2] => 2.81 ) [1] => Array ( [0] => 39236029 [1] => 1 [2] => 2.952 ) [2] => Array ( [0] => 39236015 [1] => 1 [2] => 3.333 ) [3] => Array ( [0] => 39235997 [1] => 1 [2] => 2.667 ))
3 回答
浮云間
TA貢獻(xiàn)1829條經(jīng)驗(yàn) 獲得超4個(gè)贊
我假設(shè)它$product_quantity始終是一個(gè)正整數(shù)。但也許您想在繼續(xù)之前檢查一下，如下所示：
$product_quantity = $product['quantity']; // this is already in your code
if (!is_int($product_quantity) || $product_quantity < 1) {
// handle the invalid data
}
現(xiàn)在我們確定只處理正整數(shù)，我們可以在每次迭代中檢查是否沒有超過每個(gè)訂單允許的商品數(shù)量：
$total_products = array();
$product_per_order = 0;
foreach($products as $product){
$product_id = $product['sellable']['id'];
$product_quantity = $product['quantity'];
$product_price = $product['price_per_unit'];
while ($product_quantity > 2) {
// handle delivery with 2 products of type $product_id
$product_quantity -= 2;
}
if ($product_quantity <= 0) { // We delivered all of what was ordered
continue;
}
$product_per_order += $product_quantity;
if ($product_per_order > 2) {
// handle more deliveries
$product_per_order = 0; // initialize
}
$total_products[] = array($product_id, $product_quantity, $product_price);
}
這只是跟蹤產(chǎn)品數(shù)量的方法的概述，您應(yīng)該改進(jìn)它并根據(jù)自己的需求進(jìn)行自我定制。
森欄
TA貢獻(xiàn)1810條經(jīng)驗(yàn) 獲得超5個(gè)贊
設(shè)法通過使用以下內(nèi)容來解決這個(gè)問題，這給了我我需要的單獨(dú)的包裹：
// Add the product info we need into a new array
$total_products = array();
foreach($products as $product){
$product_id = $product['sellable']['id'];
$product_quantity = $product['quantity'];
$product_price = $product['price_per_unit'];
$total_products[] = array('id' => $product_id, 'quantity' => $product_quantity, 'price' => $product_price);
}
// Separate out the quantities for each product, one per array
$resultArr = [];
foreach($total_products as $item){
for($i = 0; $i < $item['quantity']; $i++){
$resultArr[] = array(
'id' => $item['id'],
'quantity' => 1,
'price' => $item['price'],
);
}
}
// Divide up into the correct amount of parcels
$parcel_size = 2;
$parcels = array_chunk($resultArr, $parcel_size);
茅侃侃
TA貢獻(xiàn)1842條經(jīng)驗(yàn) 獲得超22個(gè)贊
我相信這滿足了將產(chǎn)品拆分為多個(gè)訂單的要求，但仍保留每個(gè)訂單中的產(chǎn)品數(shù)據(jù)：
$orders = [];
$i = 0;
foreach ($products as $product) {
foreach (array_fill(0, ceil($product['quantity'] / 2), $product) as $splitProduct) {
$splitProduct['quantity'] = min(2, $product['quantity']);
$orders[$i][] = $splitProduct;
$total = array_reduce($orders[$i], function ($carry, $product) {
return $carry + $product['quantity'];
}, 0);
if ($total >= 2) {
$i++;
}
}
}
示例1：
輸入：
$products[] = ['sellable' => ['id' => 1], 'quantity' => 4, 'price_per_unit' => 0];
輸出：
Array
(
[0] => Array
(
[0] => Array
(
[sellable] => Array
(
[id] => 1
)
[quantity] => 2
[price_per_unit] => 0
)
)
[1] => Array
(
[0] => Array
(
[sellable] => Array
(
[id] => 1
)
[quantity] => 2
[price_per_unit] => 0
)
)
)
示例2：
輸入：
$products[] = ['sellable' => ['id' => 1], 'quantity' => 2, 'price_per_unit' => 0];
$products[] = ['sellable' => ['id' => 2], 'quantity' => 2, 'price_per_unit' => 0];
輸出：
Array
(
[0] => Array
(
[0] => Array
(
[sellable] => Array
(
[id] => 1
)
[quantity] => 2
[price_per_unit] => 0
)
)
[1] => Array
(
[0] => Array
(
[sellable] => Array
(
[id] => 2
)
[quantity] => 2
[price_per_unit] => 0
)
)
)
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