从嵌套数组中获取数组值，并将数组作为父/子映射 - Get Array value from nested Array with Array as parent/child mapping

Get Array value from nested Array with Array as parent/child mapping

本文关键字：数组映射嵌套获取 | 更新日期: 2023-09-27

假设我有一个这样的数组：

$a = array(
    "foo",
    "bar"
);

和

$b = array(
    "foo" => array(
        "bar" => 1
    )
);

我想用$a来获得$b[$a[0]][$a[1]]

假设 1..* $a 长度和 1..* $b 级别。

$result = $b;
foreach ($a as $index) {
    $result = $result[$index];
}
echo $result;

这应该适合您：

<?php
    //As an example
    $a = array(
        "foo",
        "bar",
        "xy",
        "ab"
    );
    $b = array(
        "foo" => array(
            "bar" => array(
                "xy" => array(
                    "ab" => 14  
                ),
            ),
        )
    );
    $end = $b;
    foreach ($a as $index)
        $end = $end[$index];
    echo $end;
?>

输出：