filtrowanie wielowymiarowej tablicy Opcje

[neverever]

Jak odfiltrować wielowymiarową tablice?

przykładowo mam taki fragment:

[HTML] pobierz, plaintext 
Array
(
    [0] => Array
        (
            [id] => 123
            [a] => 10
            [b] => xxx
            [c] => 200
 
        )
    [1] => Array
        (
            [id] => 123
            [a] => 10
            [b] => xxx
            [c] => 80
 
        )
    [2] => Array
        (
            [id] => 63
            [a] =>34
            [b] => yyy
            [c] => 94
 
        )
    [3] => Array
        (
            [id] => 3
            [a] =>994
            [b] => xxx
            [c] => 82
 
        )
);
[HTML] pobierz, plaintext 

i chciał bym w wynikowej tablicy mieć same klucze gdzie [b] => xxx czyli:

[HTML] pobierz, plaintext 
Array
(
    [0] => Array
        (
            [id] => 123
            [a] => 10
            [b] => xxx
            [c] => 200
 
        )
    [1] => Array
        (
            [id] => 123
            [a] => 10
            [b] => xxx
            [c] => 80
 
        )
    [3] => Array
        (
            [id] => 3
            [a] =>994
            [b] => xxx
            [c] => 82
 
        )
);
[HTML] pobierz, plaintext 

Jak coś takiego zrobić?