함수 ranks()

1 개요

함수 rank()

2 JavaScript

JavaScript rank() 문서를 참고하십시오.

var arr = [79, 5, 18, 18, 32];
var sorted = arr.slice().sort(function(a,b){return b-a});
var ranks = arr.slice().map(function(v){ return sorted.indexOf(v)+1 });
console.log( ranks );
// [1, 5, 3, 3, 2]

3 PHP

PHP rank() 문서를 참고하십시오.

$arr = [79, 5, 18, 18, 32];
$sorted = $arr;
rsort($sorted);
$ranks = array_map(function($v) use ($sorted) { return array_search($v,$sorted)+1; },$arr);
print_r($ranks);
# Array
# (
#     [0] => 1
#     [1] => 5
#     [2] => 3
#     [3] => 3
#     [4] => 2
# )