Php 如何将一个数组的所有键和值放在自己的数组中？

假设我的数组如下所示：

Array
(
    [0] = Charcoal,Natural Gas,Combo
    [1] = Charcoal,Propane,Combo
    [2] = Charcoal,Propane,Natural Gas,Combo
    [3] = Natural Gas
)

Array
(
    [0] = Charcoal,Natural Gas,Combo
)
Array
(
    [0] = Charcoal,Propane,Combo
)
Array
(
    [0] = Charcoal,Propane,Natural Gas,Combo
)
Array
(
    [0] = Natural Gas
)

foreach ($array as $item) {
    print_r($item);
}

我该怎么做才能让它看起来像这样：

Array
(
    [0] = Charcoal,Natural Gas,Combo
    [1] = Charcoal,Propane,Combo
    [2] = Charcoal,Propane,Natural Gas,Combo
    [3] = Natural Gas
)

Array
(
    [0] = Charcoal,Natural Gas,Combo
)
Array
(
    [0] = Charcoal,Propane,Combo
)
Array
(
    [0] = Charcoal,Propane,Natural Gas,Combo
)
Array
(
    [0] = Natural Gas
)

foreach ($array as $item) {
    print_r($item);
}

---

乍一看，我建议：

$array = Array
(
    [0] = Charcoal,Natural Gas,Combo
    [1] = Charcoal,Propane,Combo
    [2] = Charcoal,Propane,Natural Gas,Combo
    [3] = Natural Gas
);
$array2 = array();
foreach ($array as $item) {
    $array2[][] = $item;
}

再仔细想想，不是显示一个新的数组，而是显示多个数组。这将意味着这样的实施：

Array
(
    [0] = Charcoal,Natural Gas,Combo
    [1] = Charcoal,Propane,Combo
    [2] = Charcoal,Propane,Natural Gas,Combo
    [3] = Natural Gas
)

Array
(
    [0] = Charcoal,Natural Gas,Combo
)
Array
(
    [0] = Charcoal,Propane,Combo
)
Array
(
    [0] = Charcoal,Propane,Natural Gas,Combo
)
Array
(
    [0] = Natural Gas
)

foreach ($array as $item) {
    print_r($item);
}

你可以利用函数

参见

$newArray=array；foreach$oldArray作为$value{$newArray[][]=$value；}var_dump$newArray；