php - 在 php 中搜索关联数组

Question

你好，我有以下数组

Array
(
 [k1] => Array
        (
            [0] => banana
            [1] => mango
            [2] => orange
            [3] => orange
        )

    [k2] => Array
        (
            [0] => adaL
            [1] => ada
            [2] => dad
            [3] => dad
        )
)

现在我想删除重复的条目，例如 ORANGE。我该怎么做？

Answer 1

$a = array_map('array_unique', $a);