How can I efficiently get a sub array to be the main array without a foreach loop?

Question

Here's my array:

Array
(
    [0] => Array
        (
            [same_key] => 1000
        )
    [1] => Array
        (
            [same_key] => 1001
        )
    [2] => Array
        (
            [same_key] => 1002
        )
    [3] => Array
        (
            [same_key] => 1003
        )
)

I'd like to get the following without using a foreach loop. Is this possible?

Array
(
    [0] => 1000
    [1] => 1001
    [2] => 1002
    [3] => 1003
)

Any tips?

It's been a while but I thought there were some array functions to do this without the expense of a loop. — Ryan, Sep 25 '12 at 18:11
Check out this [answer][1] [1]: http://stackoverflow.com/questions/526556/how-to-flatten-a-multi-dimensional-array-to-simple-one-in-php maybe it will help you even more — faq, Sep 25 '12 at 18:18
O yes. Sorry about the delayed acceptance of your answer. Worked like a charm. — Ryan, Oct 03 '12 at 21:58

score 4 · Accepted Answer · answered Sep 25 '12 at 18:12

The following will do the trick

$myArray = Array
(
    0 => Array
        (
            'adfadf'=> 1000
        ),
    1 => Array
        (
            'adfadf' => 1001
        ),
    2 => Array
        (
            'adfadf' => 1002
        ),
    3 => Array
        (
            'adfadf' => 1003
        )
);

$myArray = array_map('current', $myArray));

NullPoiиteя · Answer 2 · 2012-09-25T18:27:17.787

2

you can do this by $array = array_map('current', $array);

live example

output

enter image description here

edited Sep 25 '12 at 18:27

answered Sep 25 '12 at 18:13

NullPoiиteя

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That code won't work in his case. array_map('current', $array[0]) will only return the first element in his array which for this case would be 1000. – DiverseAndRemote.com Sep 25 '12 at 18:18

How can I efficiently get a sub array to be the main array without a foreach loop?

2 Answers2