PHP将多维数组压缩成字符串

$input_array = array(
    'one' => array(
            'two' => '3',
            'four' => array(5,6,7)
    'eight' => array(
            'nine' =>  array(
                    'ten' => '11'
);

one/two:3 
one/four/0:5 
one/four/1:6 
one/four/2:7 
eight/nine/ten:11

function flatten($array) {
    if (is_array($array)) {
        //get the key and value pair of the array
        foreach ($array as $key => $value) {
            if (is_array($value)) {
                echo $key.'/';
            } else {
                echo $key.":".$value."<br/>\n";
            flatten($value);
    } else {
        return false;
flatten($input_array);

one/two:3
four/0:5
eight/nine/ten:11

function flatten($array, $prefix='') {
    if (is_array($array)) {
        //get the key and value pair of the array
        foreach ($array as $key => $value) {
            if (is_array($value)) {
                // call with `path to this array` 
                flatten($value, $prefix . $key.'/');
            } else {
                echo $prefix.$key.":".$value."<br/>\n";
    } else {
        return false;
}

<?php
$input = [
    'one' => [
        'two' => '3',
        'four' => [5, 6, 7 ]
    'eight' => [
        'nine' => [
            'ten' => '11'
$output = [];
$path = [];
function createPath($entry, $path, &$output) {
    if (is_array($entry)) {
        foreach ($entry as $key => $value) {
            createPath($value, array_merge($path, [$key]), $output);
    } else {
        $output[] = implode('/', $path) . ':' . $entry;
createPath($input, $path, $output);
print_r($output);

Array

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PHP将多维数组压缩成字符串

2 个回答