根据列值创建重复数组
我有以下数组，数组中第一项的数量为 3，其余的数量为 1。这些数字是动态的。
Array
(
[0] => Array
(
[id] => 39235995
[quantity] => 3
[price] => 2.81
)
[1] => Array
(
[id] => 39236029
[quantity] => 1
[price] => 2.952
)
[2] => Array
(
[id] => 39236015
[quantity] => 1
[price] => 3.333
)
[3] => Array
(
[id] => 39235997
[quantity] => 1
[price] => 2.667
)
)
我怎样才能将其更改为以下输出？那么第一个数量为 3 的项目现在被分为 3 个数组项目，并且每个项目的数量设置为一个？
Array
(
[0] => Array
(
[id] => 39235995
[quantity] => 1
[price] => 2.81
)
[1] => Array
(
[id] => 39235995
[quantity] => 1
[price] => 2.81
)
[2] => Array
(
[id] => 39235995
[quantity] => 1
[price] => 2.81
)
[3] => Array
(
[id] => 39236029
[quantity] => 1
[price] => 2.952
)
[4] => Array
(
[id] => 39236015
[quantity] => 1
[price] => 3.333
)
[5] => Array
(
[id] => 39235997
[quantity] => 1
[price] => 2.667
)
)
富国沪深1回答
-
神不在的星期二
您可以循环原始 arr 并将内容推送到第二个数组。如果数量 > 1，您可以创建一个循环来推送每个数量的项目。像这样的东西： $resultArr = []; foreach($arrA as $item){ for($i = 0; $i < $item['quantity']; $i++){ // make sure the quantity is now 1 and not the original > 1 value $t = $item; $t['quantity'] = 1; $resultArr[] = $t; } }请注意，代码期望您的原始数组被称为 $arrA
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