php - How to use array values as keys without loops?

Question

Looping is time consuming, we all know that. That's exactly something I'm trying to avoid, even though it's on a small scale. Every bit helps. Well, if it's unset of course :)

On to the issue

I've got an array:

array(3) {
    '0' => array(2) {
        'id'   => 1234,
        'name' => 'blablabla',
    },
    '1' => array(2) {
        'id'   => 1235,
        'name' => 'ababkjkj',
    },
    '2' => array(2) {
        'id'   => 1236,
        'name' => 'xyzxyzxyz',
    },
}

What I'm trying to do is to convert this array as follows:

array(3) {
    '1234' => 'blablabla',
    '1235' => 'asdkjrker',
    '1236' => 'xyzxyzxyz',
}

I guess this aint a hard thing to do but my mind is busted right now and I can't think of anything except for looping to get this done.

Answer 1

Simply use array_combine along with the array_column as

array_combine(array_column($array,'id'), array_column($array,'name'));

Or you can simply use array_walk if you have PHP < 5.5 as

$result = array();
array_walk($array, function($v)use(&$result) {
    $result[$v['id']] = $v['name']; 
});

Edited:

For future user who has PHP > 5.5 can simply use array_column as

array_column($array,'name','id');

Fiddle(array_walk)