通过值组合两个数组的巧妙方法

那怎么办 array_combine

$result = array_combine($array1, $array2)

PHPDoc

你可以用 array_reduce :

$a = array();
$a[123] = ['1qa2ws'];
$a[456] = ['3ed4rf'];

$b = array();
$b[0] = ['id' => '1qa2ws', 'other' => 'data'];
$b[1] = ['id' => '3ed4rf', 'other' => 'data'];
$b[2] = ['id' => 'av42sa', 'other' => 'data'];

$c = array_reduce($a, function ($carry, $item) use ($a, $b) {
    $itemId = array_search($item, $a);
    $agentId = array_values($item)[0];

    if (array_search($agentId, array_column($b, 'id')) !== false) {
        $carry[$itemId] = $b[array_search($agentId, array_column($b, 'id'))];
    }

    return $carry;
}, []);

array_combine 和 array_column :

$resolvedAgents = array_combine(array_column($resolvedAgents, 'id'), $resolvedAgents);

在此之后,$resolvedAgent将成为:

[1qa2ws] => [id => 1qa2ws, ....]
[3ed4rf] => [id => 3ed4rf, ....]

同时你将拥有你的第一个阵列:

// [itemId] => [agentId]
[123] => [1qa2ws]
[456] => [3ed4rf]

$agents = array_map(function($agentId) use ($resolvedAgents) {
    return $resolvedAgents[$agentId] ?: null;
}, $agentIDs);

最后,您的代码将是:

$resolvedAgents = array_combine(array_column($resolvedAgents, 'id'), $resolvedAgents);
$agents = array_map(function($agentId) use ($resolvedAgents) {
    return $resolvedAgents[$agentId] ?: null;
}, $agentIDs);

事实上,我最终做到了这一点,这是我满意的解决方案:

$agents = array_map(function($agent) use ($resolvedAgents){
    return $resolvedAgents[array_search($agent, array_column($resolvedAgents, 'accountId'))] ?: null;
}, $agentIDs);