基于类似的数组对数组进行排序？

Question

I have 2 arrays with numerical indices that have the same number of keys and similar but not identical values. $unordered has the unordered data, whereas array $ordered has the data in the proper order. I want to sort $unordered in the same order as $ordered, but keep the percentage values in square brackets from $unordered.

$unordered:

[0] => "Horse [1%]"
[1] => "Cat [5%]"
[2] => "Dog [94%]"

$ordered:

[0] => "Cat"
[1] => "Horse"
[2] => "Dog"

Thanks.

Answer 1

usort is your go-to sorting function when it comes to complicated things like your example.

Try something like this. Basically, it parses the value from $unordered, then searches for it in the $ordered array.

usort($unordered, function($a, $b) use($ordered){
    $aVal = explode(' ', $a);
    $bVal = explode(' ', $b);

    return array_search($aVal[0], $ordered) - array_search($bVal[0], $ordered);
});

DEMO: https://eval.in/184201