php array_merge_deep能處理嵌套數(shù)組嗎

PHP
小樊
81
2024-10-13 23:46:41

是的，array_merge_deep() 函數(shù)可以處理嵌套數(shù)組。這個(gè)函數(shù)會(huì)遞歸地合并兩個(gè)或多個(gè)數(shù)組，包括它們的嵌套子數(shù)組。當(dāng)遇到數(shù)組元素是數(shù)組時(shí)，它會(huì)合并這些子數(shù)組。

下面是一個(gè)例子：

$array1 = [
    'a' => 1,
    'b' => [
        'c' => 2,
        'd' => [
            'e' => 3
        ]
    ]
];

$array2 = [
    'a' => 10,
    'b' => [
        'c' => 20,
        'd' => [
            'e' => 30,
            'f' => 40
        ]
    ],
    'g' => 50
];

$result = array_merge_deep($array1, $array2);

print_r($result);

輸出結(jié)果：

Array
(
    [a] => 10
    [b] => Array
        (
            [c] => 20
            [d] => Array
                (
                    [e] => 30
                    [f] => 40
                )

        )

    [g] => 50
)

可以看到，array_merge_deep() 函數(shù)成功地合并了兩個(gè)嵌套數(shù)組。

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