将数组键更改为数组中的值

Question

Edit:

Trying to avoid doing a loop outside of the $data array you see. As I need to do this a couple of times and it looks messy.

---

I have got an array similar to this:

$links = [
    [
        'type_id' => '1',
        'url' => ''
    ],
    [
        'type_id' => '2',
        'url' => ''
    ]
];
$types = [
    [
        'id' => 1,
        'value' => 'facebook'
    ],
    [
        'id' => 2
        'value' => 'twitter'
    ]
];
$data = [
    'primary' => [
        'address_details' => [],
        'contact_details' => [],
        'social_links' => $links
    ]
];

I need the keys within my $data['primary']['social_links'] to use the $type['value'] rather than just being 0, 1, etc...

So $data would look like:

$data = [
    'primary' => [
        'address_details' => [],
        'contact_details' => [],
        'social_links' => [
            'facebook' => [
                'type_id' => '1',
                'url' => ''
            ],
            'twitter' => [
                'type_id' => '2',
                'url' => ''
            ]
        ]
    ]
];

Is there a way I can do this with array_map or something?

Answer 1

You can just use array_combine with the output of the value column of $types (generated using array_column) as keys and the values from $links:

$data = [
    'primary' => [
        'address_details' => [],
        'contact_details' => [],
        'social_links' => array_combine(array_column($types, 'value'), $links)
    ]
];
print_r($data);

Output:

Array ( 
    [primary] => Array (
        [address_details] => Array ( )
        [contact_details] => Array ( )
        [social_links] => Array (
            [facebook] => Array (
                [type_id] => 1
                [url] =>
            )
            [twitter] => Array (
                [type_id] => 2
                [url] =>
            )
        )
    ) 
)

Demo on 3v4l.org

Update

Based on the edit to OPs question, things get a lot more complicated to give a one-line solution. This should work:

$data = [
    'primary' => [
        'address_details' => [],
        'contact_details' => [],
        'social_links' => array_map(function ($v) use ($links) { return $links[array_search($v, array_column($links, 'type_id'))]; }, array_column($types, 'id', 'value'))
    ]
];

Demo on 3v4l.org