Question

我试图使用array_combine函数来组合一组键，这些键是一组数组的字符串。数组合并导致新数组被重新索引。

$keys = array("00","11","22");
$values = array(0 => array("cake", "sprinkles"), 1 => array("dog", "cat"), 2 => array("water","fire"));

$combined_array = array_combine($keys, $values);

结果

Array
(
    [0] => Array
        (
            [0] => cake
            [1] => sprinkles
        )

    [1] => Array
        (
            [0] => dog
            [1] => cat
        )

    [2] => Array
        (
            [0] => water
            [1] => fire
        )
)

期望的结果

Array
(
    ["00"] => Array
        (
            [0] => cake
            [1] => sprinkles
        )

    ["11"] => Array
        (
            [0] => dog
            [1] => cat
        )

    ["22"] => Array
        (
            [0] => water
            [1] => fire
        )
)

Answer 1

如果这个方法不起作用，你可以尝试其他方法，我没有尝试你的代码，但这是其他解决方案之一：

<?php

$keys = array("00","11","22");
$values = array(0 => array("cake", "sprinkles"), 1 => array("dog", "cat"), 2 => array("water","fire"));

foreach ($keys as $key) {
        foreach ($values as $k => $value) {

            $result[$key] = $value;
            // if you want to unset the initaial array
            // unset($values[$k]);

        }
}

var_dump($result); exit;

?>

希望它有帮助.. 干杯

Answer 2

您的代码很好

仅错字错误$Keys而不是$keys

$combined_array = array_combine($keys, $values);

echo "<pre>";print_r($combined_array);

输出

Array
(
    [00] => Array
        (
            [0] => cake
            [1] => sprinkles
        )

    [11] => Array
        (
            [0] => dog
            [1] => cat
        )

    [22] => Array
        (
            [0] => water
            [1] => fire
        )

)

另外评论如何通过此array_combine

发布error时的输出结果

警告：array_combine（）期望参数1为数组，给定
为null

数组合使用字符串'键'和数组'值'

2 个答案: