成功地掌握了 PHP.

<?php

$results = [
    ['name' => '田中',  'japanese' => 83, 'math' => 57, 'science' => 43,  'social' => 72, 'english' => 78],
    ['name' => '渡部',  'japanese' => 62, 'math' => 88, 'science' => 70,  'social' => 66, 'english' => 38],
    ['name' => '品川',  'japanese' => 23, 'math' => 33, 'science' => 53,  'social' => 17, 'english' => 7],
    ['name' => '滝谷',  'japanese' => 93, 'math' => 89, 'science' => 79,  'social' => 96, 'english' => 91],
    ['name' => '川原田','japanese' => 55, 'math' => 56, 'science' => 60,  'social' => 54, 'english' => 66],
    ['name' => '一色',  'japanese' => 27, 'math' => 47, 'science' => 100, 'social' => 42, 'english' => 38],
];

function cube($n){
    return ['name' => $n['name'].'さん ','total' => ($n['japanese'] + $n['math'] + $n['science'] + $n['social'] + $n['english']).'点'];
}

$output_peaple = array_map('cube', $results);



$menu =  array_reduce($output_peaple, function($accumulator, $item){
  $index = $item['name'];
    $accumulator[$index] = $item['total'];
  return $accumulator;
}, []);


arsort($menu);
$cnt = 1;
foreach ($menu as  $key => $value){

    echo $cnt++.'位：'.$key.$value.PHP_EOL;

}