Php 使用多维数组中的第二个键获取值

我有一个列表或数组：

$var_menu_sub["1"]["1"] = "1|Sub Menu Label #1";
$var_menu_sub["1"]["2"] = "1|Sub Menu Label #2";
$var_menu_sub["1"]["3"] = "1|Sub Menu Label #3";
$var_menu_sub["2"]["this_key"] = "1|Change Password";
$var_menu_sub["3"]["1"] = "1|Sub Menu Label #1";
$var_menu_sub["3"]["2"] = "1|Sub Menu Label #2";

那么，如果我只使用key“this_key”而不知道数组变量中的“2”键，那么如何获取值“Change Password”

这样（？？？=平均动态）：

---

假设只有一个

此\u键

：

echo current(array_column($var_menu_sub, 'this_key'));

如果有多个

此_键

，则只需对结果执行

foreach

：

foreach(array_column($var_menu_sub, 'this_key') as $value) {
    echo $value;
}

一种方法是：

<?php
$var_menu_sub["1"]["1"] = "1|Sub Menu Label #1";
$var_menu_sub["1"]["2"] = "1|Sub Menu Label #2";
$var_menu_sub["1"]["3"] = "1|Sub Menu Label #3";
$var_menu_sub["2"]["this_key"] = "1|Change Password";
$var_menu_sub["3"]["1"] = "1|Sub Menu Label #1";
$var_menu_sub["3"]["2"] = "1|Sub Menu Label #2";

// Loop over entire array
foreach ($var_menu_sub as $data) {
    //Loop over the array which is indexed by the key you know
    foreach ($data as $key => $value) {
        // Look for that key
        if ($key == 'this_key') {
            echo $value;
        }
    }
}

---

它与array_column（）配合使用，谢谢，你救了我一天：）谢谢你的回答，它可以工作，但我需要更简单的行代码，然后我使用array_column（）：）
<?php
$var_menu_sub["1"]["1"] = "1|Sub Menu Label #1";
$var_menu_sub["1"]["2"] = "1|Sub Menu Label #2";
$var_menu_sub["1"]["3"] = "1|Sub Menu Label #3";
$var_menu_sub["2"]["this_key"] = "1|Change Password";
$var_menu_sub["3"]["1"] = "1|Sub Menu Label #1";
$var_menu_sub["3"]["2"] = "1|Sub Menu Label #2";

// Loop over entire array
foreach ($var_menu_sub as $data) {
    //Loop over the array which is indexed by the key you know
    foreach ($data as $key => $value) {
        // Look for that key
        if ($key == 'this_key') {
            echo $value;
        }
    }
}