php - 如何将数组分解成更小的数组？

Question

我需要使用分隔符（例如空格）将数组分解为较小的数组，而不是使用一定数量的字符（因此 array_chunk 对此不起作用，这些答案如何将数组分解为指定数量的较小数组？不是出于同样的原因相关）。

例子：

$array1 = ("One two three","four five six","seven eight nine");

想将“一二三”拆分为一个数组中的三个元素（使用空格作为分隔符），接下来的两个元素也是如此。这也可以拆分为多维数组。

Answer 1

php> $array1 = array("One two three","four five six","seven eight nine");

php> =array_map(function($a){return explode(' ',$a);},$array1)
array(
  0 => array(
    0 => "One",
    1 => "two",
    2 => "three",
  ),
  1 => array(
    0 => "four",
    1 => "five",
    2 => "six",
  ),
  2 => array(
    0 => "seven",
    1 => "eight",
    2 => "nine",
  ),
)

匿名函数可以更改为您认为合适的任何方式。正则表达式，随便。

编辑根据您的评论：

php> $array1 = array("One two three","four five,six","seven,eight nine");

php> =array_map(function($a){return preg_split('/[ ,]/',$a);},$array1)
array(
  0 => array(
    0 => "One",
    1 => "two",
    2 => "three",
  ),
  1 => array(
    0 => "four",
    1 => "five",
    2 => "six",
  ),
  2 => array(
    0 => "seven",
    1 => "eight",
    2 => "nine",
  ),
)