将单元素数组数组转换为一维数组 [英] Convert array of single-element arrays to one a dimensional array

问题描述

我有这样一个数组:

Array
(
    [0] => Array
        (
            [0] => 88868
        )
    [1] => Array
        (
            [0] => 88867
        )
    [2] => Array
        (
            [0] => 88869
        )
    [3] => Array
        (
            [0] => 88870
        )
)

我需要将其转换为一维数组.我该怎么做?

I need to convert this to one dimensional array. How can I do that?

比如这样..

Array
(
    [0] => 88868
    [1] => 88867
    [2] => 88869
    [3] => 88870 
)

是否有任何 php 内置功能可用于此数组转换?

Any php built in functionality is available for this array conversion?

推荐答案

对于您的有限用例，这会做到:

For your limited use case, this'll do it:

$oneDimensionalArray = array_map('current', $twoDimensionalArray);

当子数组有很多条目时，这可以更概括:

This can be more generalized for when the subarrays have many entries to this:

$oneDimensionalArray = call_user_func_array('array_merge', $twoDimensionalArray);

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