使用 Explode 拆分数组中的值以形成多维数组

Split Values in Array Using Explode to form Multidimensional Array

我是 PHP 的新手,请多关照。 :) 我有一个 3 深阵列。像这样:

Array(5) { 
[0]=> array(5) { 

    [0]=> string(0) "" 
    [1]=> string(21) "0,245.19000000,864432"
    [2]=> string(21) "1,245.26000000,864432" 
    [3]=> string(21) "2,245.49000000,864432" 
    [4]=> string(21) "4,245.33000000,864432" 
}

[1]=> array(5) { 
    [0]=> string(0) "" 
    [1]=> string(21) "0,245.19000000,864453" 
    [2]=> string(21) "1,245.26000000,864453" 
    [3]=> string(21) "2,245.49000000,864453" 
    [4]=> string(21) "4,245.33000000,864453" 
 }
}...

我想用逗号 ("2,245.49000000,864453") 展开内部字符串,这样数组就变成了 4 深,如下所示:

Array(5) { 
  [0]=> array(5) { 

    [0]=> string(0) "" 

    [1]=> array (3)
              [0]=> "0"
              [1]=> "245.19000000"
              [2]=> "864432"

    [2]=> array (3)
              [0]=> "1"
              [1]=> "245.26000000"
              [2]=> "864432"

    [3]=> array (3)
              [0]=> "3"
              [1]=> "245.49000000"
              [2]=> "864432"

    [4]=> array (3)
              [0]=> "4"
              [1]=> "245.3000000"
              [2]=> "864432"

    [4]=> array (3)
              [0]=> "5"
              [1]=> "245.3300000"
              [2]=> "864432"
 }
}
...

到目前为止我有:

$done = array();

for ($i = 0; $i<=count($chunks); $i++) { //loops to get size of each 2d array
$r = count($chunks[$i]);

        for ($c = 0; $c<=count($chunks[$r]); $c++) { //loops through 3d array

        $arrayparts = $chunks[$i][$c];
        $done[] = explode(",", $arrayparts); //$arrayparts is 3d array string that is exploded each time through loop

    }

}

我认为这段代码应该可以工作,但是当我 var_dump 没有打印任何内容时? 有人可以帮我学习吗?

谢谢!

建议: $chunks 是 3d 数组

foreach($chunks as $innerArray) {
        $result[] = array_map(function($v){
            return explode(",", $v);
        }, $innerArray);
    }

不要搞复杂,直接用这个:

(在这里,我使用 foreach 循环遍历每个 innerArray,然后使用 array_map() 遍历所有值并将其分解,然后 return 将其分解为结果数组)

<?php

    foreach($arr as $innerArray) {
        $result[] = array_map(function($v){
            return explode(",", $v);
        }, $innerArray);
    }

    print_r($result);

?>

这使用了 array_map() 两次。也许是更好的方法,但我正在喝三杯啤酒:

$result = array_map(function($v){
                        return array_map(function($v){ return explode(',', $v); }, $v);
                    }, $array);