从嵌套数组中获取唯一值- Laravel

<?php

use Illuminate\Support\Facades\DB;

// 假设我们有一个嵌套数组
$nestedArray = [
    ['id' => 1, 'name' => 'Alice'],
    ['id' => 2, 'name' => 'Bob'],
    ['id' => 1, 'name' => 'Alice'],
    ['id' => 3, 'name' => 'Charlie']
];

// 使用Laravel的集合来获取唯一值
$uniqueValues = collect($nestedArray)->pluck('id')->unique()->toArray();

print_r($uniqueValues);

$complexNestedArray = [
    ['id' => 1, 'name' => 'Alice', 'details' => ['age' => 25]],
    ['id' => 2, 'name' => 'Bob', 'details' => ['age' => 30]],
    ['id' => 1, 'name' => 'Alice', 'details' => ['age' => 25]],
    ['id' => 3, 'name' => 'Charlie', 'details' => ['age' => 35]]
];

<?php

use Illuminate\Support\Facades\DB;

function getUniqueValuesRecursive($array, $key) {
    $uniqueValues = [];
    foreach ($array as $item) {
        if (isset($item[$key])) {
            $uniqueValues[$item[$key]] = $item;
        } else {
            foreach ($item as $subItem) {
                if (isset($subItem[$key])) {
                    $uniqueValues[$subItem[$key]] = $subItem;
                }
            }
        }
    }
    return array_values($uniqueValues);
}

$complexUniqueValues = getUniqueValuesRecursive($complexNestedArray, 'id');

print_r($complexUniqueValues);