如何在PHP中分离数组

Question

我以这种格式获取数组数据：

例如：

array = [
    "index-category",
    "create-category",
    "store-category",
    "show-category",
    "index-products",
    "create-products",
    "store-products",
    "show-products",
    "edit-products",
    "index-sales",
    "create-sales",
]

我需要转换为：

array {
    0 => {
         "index-category",
         "create-category",
         "store-category",
         "show-category",
    },
    1 => {
         "index-products",
         "create-products",
         "store-products",
         "show-products",
         "edit-products",
    }
    2 => {
         "index-sales",
         "create-sales",
    }
}

如何转换为此数组？

PHP是自动转换的方法吗？

Answer 1

我认为您只是用适当的数组符号弄乱。数组符号不使用卷曲括号{或}。因此，如果它是一个适当的数组，则可以使用Array_chunk((

尝试以这种方式尝试

N.B ：对于数组符号，我们可以使用两种不同的方法，例如$array = []或$array=array()

<?php
$array = [
    'category.index',
    'category.create',
    'category.store',
    'category.edit',
    'product.index',
    'product.create',
    'product.store',
    'product.edit',
    'city.index',
    'city.create',
    'city.store',
    'city.edit',
];
print '<pre>';
print_r(array_chunk($array,4));
print '</pre>';
?>

输出：

Array
(
    [0] => Array
        (
            [0] => category.index
            [1] => category.create
            [2] => category.store
            [3] => category.edit
        )
    [1] => Array
        (
            [0] => product.index
            [1] => product.create
            [2] => product.store
            [3] => product.edit
        )
    [2] => Array
        (
            [0] => city.index
            [1] => city.create
            [2] => city.store
            [3] => city.edit
        )
)

演示： https://eval.in/980164

编辑：

根据您的问题更新

只需在list((

的情况下尝试这样的尝试

$new = array();
foreach($array as $val) {
    list($item, $number) = explode('.', $val);
    $new[$item][] = $val;
}
print '<pre>';
print_r(array_values($new));
print '</pre>';

演示： https://eval.in/980176

输出：

Array
(
    [0] => Array
        (
            [0] => category.index
            [1] => category.create
            [2] => category.store
            [3] => category.edit
        )
    [1] => Array
        (
            [0] => product.index
            [1] => product.create
            [2] => product.store
        )
    [2] => Array
        (
            [0] => city.index
            [1] => city.create
            [2] => city.store
            [3] => city.edit
        )
)

再次编辑

现在您的问题上有不同的初始数组，所以现在代码应该像这样。

$new = array();
foreach($array as $val) {
    list($item, $number) = explode('-', $val);
    $new[$number][] = $val;
}
print '<pre>';
print_r(array_values($new));
print '</pre>';

演示： https://eval.in/980251

Answer 2

这将是一种简单的算法来转换输入数据：

<?php
$input = [
    'category.index',
    'category.create',
    'category.store',
    'category.edit',
    'product.index',
    'product.create',
    'product.store',
    'city.index',
    'city.create',
    'city.store',
    'city.edit',
];
$category = [];
array_walk($input, function ($entry) use (&$category) {
    $tokens = explode('.', $entry);
    $category[$tokens[0]][] = $entry;
});
$output = array_values($category);
print_r($output);

显然输出是：

Array
(
    [0] => Array
        (
            [0] => category.index
            [1] => category.create
            [2] => category.store
            [3] => category.edit
        )
    [1] => Array
        (
            [0] => product.index
            [1] => product.create
            [2] => product.store
        )
    [2] => Array
        (
            [0] => city.index
            [1] => city.create
            [2] => city.store
            [3] => city.edit
        )
)

---

这是具有琐碎修改的算法相同的算法，可以匹配您现在通过更新问题并评论此答案来突然显示的更改输入数据。

如前所述，所有这些都没有真正影响算法，微小的调整将再次提供所需的输出：

<?php
$input = [
    "index-category",
    "create-category",
    "store-category",
    "show-category",
    "index-products",
    "create-products",
    "store-products",
    "show-products",
    "edit-products",
    "index-sales",
    "create-sales",
];
$category = [];
array_walk($input, function ($entry) use (&$category) {
    $tokens = explode('-', $entry);
    $category[$tokens[1]][] = $entry;
});
$output = array_values($category);
print_r($output);

这将如预期的那样导致该输出：

Array
(
    [0] => Array
        (
            [0] => index-category
            [1] => create-category
            [2] => store-category
            [3] => show-category
        )
    [1] => Array
        (
            [0] => index-products
            [1] => create-products
            [2] => store-products
            [3] => show-products
            [4] => edit-products
        )
    [2] => Array
        (
            [0] => index-sales
            [1] => create-sales
        )
)