php 將任意二維數組轉換一維數組(鍵值對)

<?php

$a = [
    [
        'id' => 33, // 這里的鍵名不固定
        'name' => 'aaa',
    ],
    [
        'id' => 22,
        'name' => 'bbb'
    ]
];

$dat = [];
foreach ($a as $b) {
    list($k, $v) = array_values($b);
    $dat[$k] = $v;
}

var_export($dat); // 輸出：array ( 33 => 'aaa', 22 => 'bbb', )