PHP 根据另一个数组对一个数组进行排序

Question

I have the following scenario

$elementsInPairs = ["xyz","xxx","yyy","zzz"];
$valuesInPair =[4,2,3,1];

and i need to sort the second array which would give me

[1,2,3,4]

which i can do by

sort($valuesInPair)

but i need the same to happen in first array as well, based on the sorting of the second array

["zzz","xxx","yyy","xyz"];

EDIT As i had to fix it urgently, i guess i wasn't able to share more information, and the question seemed vague

basically the idea is that i have two sets of arrays, same number of elements in all cases, and they are linked to each other, The second array is a set of order IDs. and first array is set of names, so in the above example, i have

4 relates to xyz
2 relates to xxx
3 relates to yyy
1 relates to zzz

So i need to sort based on IDs, and have the same order reflect in the first array as well,

so the final result would be,

["zzz","xxx","yyy","xyz"];

which is sorted based on

[1, 2, 3, 4];

Hopefully this clears things above

Answer 1

Hi please combine two array and sort

$newArray =array_combine($valuesInPair,$elementsInPairs);

then sort($newArray);

Answer 2

Use this below code, this does exactly what you're looking for.

$elementsInPairs = ["xyz","xxx","yyy","zzz"];
$valuesInPair =[4,2,3,1];

$data = array_combine($elementsInPairs,$valuesInPair);
asort($data);

$dumpdata = [];

foreach($data as $x => $x_value) {
    $dumpdata[] = $x;
}

print_r($dumpdata);

I hope this helps you.

Answer 3

You kan do like this:

<?php

$elementsInPairs = ["xyz","xxx","yyy","zzz"];
$valuesInPair =[4,2,3,1];
//use [asort][1] - Sort an array in reverse order and maintain index association
asort($valuesInPair);
// and make a new array to sort elementsInPairs
$newelementsInPairs = array();
foreach($valuesInPair as $key=>$val){
    $newelementsInPairs[] = $elementsInPairs[$key];
}
print_r(implode(",",$valuesInPair)."\n");
print_r(implode(",",$newelementsInPairs));
/** Output

1,2,3,4
zzz,xxx,yyy,xyz

 **/

Answer 4

You can use array_combine() , ksort() and array_values() :

<?php

$elementsInPairs = ["xyz","xxx","yyy","zzz"];
$valuesInPair = [4,2,3,1];

$newArray = array_combine($valuesInPair, $elementsInPairs);
ksort($newArray);
$sortedElements = array_values($newArray);

print_r($sortedElements);

will output

Array
(
    [0] => zzz
    [1] => xxx
    [2] => yyy
    [3] => xyz
)

Answer 5

You can achieve this by using array_multisort method.

array_multisort($valuesInPair, SORT_ASC, $elementsInPair);