PHP迭代未知维度数组 [英] PHP Iterate over unknown dimensional array

问题描述

我想猜测如何迭代维数未知的多维数组.我总是在 foreach 语句中静态设置 foreach 语句，但我不知道这次要设置多少语句，因为尺寸数是可变的.总之，我需要的只是迭代父数组中的每个元素，这些元素有更多的数组作为值，而那些作为数组的值有更多的数组作为值，依此类推...

I'm trying to guess how to iterate over multi-dimensional arrays with unknown number of dimensions. I've always done that job statically setting foreach statements inside foreach statements but I don't know how many statements to set this time because dimensions number is variable. In summary, All I need is to iterate over every element in a parent array that has more arrays as values and those values that are arrays have more arrays as values, and so on...

推荐答案

递归就是你所需要的:

function recur($arr) {
    if (!is_array($arr)) {
        // $arr is the last element
        echo "$arr ";
        return;
    }

    foreach($arr as $ar) recur($ar);
}

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