在 PHP 中回显多维数组

php arrays multidimensional-array nested

2022-08-31 00:02:08

我有一个多维数组，我试图找出如何简单地“回显”数组的元素。数组的深度未知，因此可以深度嵌套。

在下面的数组中，回显的正确顺序是：

This is a parent comment
This is a child comment
This is the 2nd child comment
This is another parent comment

这就是我所说的数组：

Array
(
    [0] => Array
        (
            [comment_id] => 1
            [comment_content] => This is a parent comment
            [child] => Array
                (
                    [0] => Array
                        (
                            [comment_id] => 3
                            [comment_content] => This is a child comment
                            [child] => Array
                                (
                                    [0] => Array
                                        (
                                            [comment_id] => 4
                                            [comment_content] => This is the 2nd child comment
                                            [child] => Array
                                                (
                                                )
                                        )
                                )
                        )
                )
        )

    [1] => Array
        (
            [comment_id] => 2
            [comment_content] => This is another parent comment
            [child] => Array
                (
                )
        )
)

答案 1

<pre>
<?php print_r ($array); ?>
</pre>

答案 2

看起来您只是尝试从每个数组中写入一个重要值。尝试一个递归函数，如下所示：

function RecursiveWrite($array) {
    foreach ($array as $vals) {
        echo $vals['comment_content'] . "\n";
        RecursiveWrite($vals['child']);
    }
}

您还可以使其更具动态性，并将和字符串作为参数传递到函数中（并在递归调用中继续传递它们）。'comment_content''child'