php 从一组数组和合并节点中删除父级数组 [英] php Remove parent level array from set of arrays and merge nodes

问题描述

我对操作数组很糟糕...鉴于这种结构，我想删除顶级数组并将所有子集合并到一个平面数组中:

I am terrible with manipulating arrays...given this structure I want to remove the top level array and merge all subsets into one flat array:

Array
(
    [0] => Array
        (
            [0] => Array
                (
                    [0] => hey.com
                )

            [1] => Array
                (
                    [0] => you.com
                )
        )
    [1] => Array
        (
            [0] => Array
                (
                    [0] => this.com
                )

            [1] => Array
                (
                    [0] => rocks.com
                )
        )
)

到所需的结构:

Array
    (
        [0] => hey.com
        [1] => you.com
        [2] => this.com
        [3] => rocks.com
    )

速度至关重要 - 我们将处理数十万个结果

Speed is essential - we will be dealing with hundreds of thousands of results

推荐答案

你可以使用 RecursiveArrayIterator

$it = new RecursiveIteratorIterator(new RecursiveArrayIterator($data));
$list = iterator_to_array($it,false);
var_dump($list);

输出

array (size=4)
  0 => string 'hey.com' (length=7)
  1 => string 'you.com' (length=7)
  2 => string 'this.com' (length=8)
  3 => string 'rocks.com' (length=9)

查看简单演示

这篇关于php 从一组数组和合并节点中删除父级数组的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！