PHP的数组排序基于另一个数组？ [英] PHP-Sort array based on another array?

问题描述

OK，我已经得到了在计算器这个问题，但遗憾的是它在JavaScript - <一个href=\"http://stackoverflow.com/questions/13304543/javascript-sort-array-based-on-another-array\">Javascript - 基于另一个数组排序阵列

OK, I already got this question in stackoverflow but sadly it's in javascript - Javascript - sort array based on another array

，我希望它在PHP

$data = array(
   "item1"=>"1",
   "item2"=>"3",
   "item3"=>"5",
   "item4"=>"2",
   "item5"=>"4"
);

要匹配这个阵列的排列方式：

to match the arrangement of this array:

sortingArr = array("5","4","3","2","1");

和我在寻找的输出：

$data = array(
    "item3"=>"5",
    "item5"=>"4",
    "item2"=>"3",
    "item4"=>"2",
    "item1"=>"1"
 );

不知道如何可以做到这一点？
谢谢你。

Any idea how this can be done? Thanks.

推荐答案

pretty简单？

$data = array(
   "item1"=>"1",
   "item2"=>"3",
   "item3"=>"5",
   "item4"=>"2",
   "item5"=>"4"
);

$sortingArr = array("5","4","3","2","1");

$result = array(); // result array
foreach($sortingArr as $val){ // loop
    $result[array_search($val, $data)] = $val; // adding values
}
print_r($result); // print results

输出：

Array
(
    [item3] => 5
    [item5] => 4
    [item2] => 3
    [item4] => 2
    [item1] => 1
)

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