如何从字符串创建多维数组 [英] How to create a multi-dimensional array from string

问题描述

试图从字符串创建多维数组。我的字符串是：

Looking to create a multi-dimensional array from a string. My string is:

13,4,3 | 65,1,1 | 27,3,2

13,4,3|65,1,1|27,3,2

我想将其存储在一个数组中，假设它看起来像这样：

I want to store it in an array which I'm assuming would look like this:

$multi_array = array
  (
  array(13,4,3),
  array(65,1,1),
  array(27,3,2)
  );

所以我可以用$ multi_array [1] [1]调用它，它应该返回 4 。

So I can call it with $multi_array[1][1], which should return "4".

以下是我到目前为止的代码：

Here's the code I have so far:

$string = "13,4,3|65,1,1|27,3,2";
$explode = explode("|", $string);
$multi_array = array(); //declare array

  $count = 0;

foreach ($explode as $value) {

  $explode2 = explode(",", $value);

  foreach ($explode2 as $value2) {
    // I'm stuck here....don't know what to do.
  }
  $count++;
}
echo '<pre>', print_r($multi_array), '</pre>';

推荐答案

尝试这种方式，

$data = '13,4,3|65,1,1|27,3,2';

$return_2d_array = array_map (
  function ($_) {return explode (',', $_);},
  explode ('|', $data)
);

print '<pre>';
print_r ($return_2d_array);
print '</pre>';

OR 与您自己的代码

$string = "13,4,3|65,1,1|27,3,2";
$explode = explode("|", $string);
$multi_array = array(); //declare array

$count = 0;

foreach ($explode as $key=>$value) { // see changes on this line

  $explode2 = explode(",", $value);

  foreach ($explode2 as $value2) {
    $multi_array[$key][$count] = $value2;
    $count++; // see count variable position changes here
  }

}
echo '<pre>', print_r($multi_array), '</pre>';

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