在PHP中合并数组 [英] Combine array in php

问题描述

我有数组

array
  0 => 
    array
      2 => int 50000
  1 => 
    array
      2 => int 30000
  2 => 
    array
      1 => int 25000
  3 => 
    array
      1 => int 20000
  4 => 
    array
      1 => int 10000

我需要创建数组，结果是：

array
  2 => int 50000
  2 => int 30000
  1 => int 25000
  1 => int 20000
  1 => int 10000

谢谢大家。
抱歉，我的英语不好：（

Thank for all. sorry, my english very bad :(

推荐答案

PHP不允许数组具有相同的键。将显示php如何处理foreach循环，其中是将数组重写为具有所需键和值的新数组

PHP doesn't allow arrays to have the same keys. This will show how php will handle a foreach loop wich is rewriting the array into a new one with desired key and value

$array = array(
  0 => 
    array(
      2 => 50000),
  1 => 
    array(
      2 => 30000),
  2 => 
    array(
      1 => 25000),
  3 => 
    array(
      1 => 20000),
  4 => 
    array(
      1 => 10000)
);

$new_array = array();
foreach($array as $data)
{
    foreach($data as $key => $val)
    {
        $new_array[$key] = $val;
    }
}
var_dump($new_array);

此将输出

array(2) {
  [2]=>
  int(30000)
  [1]=>
  int(10000)
}

实时示例

您可以看到每个循环上的键均被覆盖因为它们是相同的，所以值也是一样，我想您可以使用上面的函数创建一个一级数组，该数组从 $ new_array

As you can see keys are overwritten on each loop becuase they are identical and so are values, i think you can use the above function to have a one level array removing keys from $new_array

foreach($data as $key => $val)
{
    $new_array[] = $val;
}

实时示例

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