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  1. <?php
  2.  
  3. class Klasemen
  4. {
  5.     private $poinKlub = [];
  6.  
  7.     public function __construct($daftarKlub)
  8.     {
  9.         foreach ($daftarKlub as $klub) {
  10.             $this->poinKlub[$klub] = 0;
  11.         }
  12.     }
  13.  
  14.     public function catatPermainan($klubKandang, $klubTandang, $skor)
  15.     {
  16.         list($skorKandang, $skorTandang) = explode(':', $skor);
  17.         $skorKandang = (int)$skorKandang;
  18.         $skorTandang = (int)$skorTandang;
  19.  
  20.         if ($skorKandang > $skorTandang) {
  21.             $this->poinKlub[$klubKandang] += 3;
  22.         } elseif ($skorKandang < $skorTandang) {
  23.             $this->poinKlub[$klubTandang] += 3;
  24.         } else {
  25.             $this->poinKlub[$klubKandang] += 1;
  26.             $this->poinKlub[$klubTandang] += 1;
  27.         }
  28.     }
  29.  
  30.     public function cetakKlasemen()
  31.     {
  32.         arsort($this->poinKlub);
  33.         return $this->poinKlub;
  34.     }
  35.  
  36.     public function ambilPeringkat($peringkat)
  37.     {
  38.         $klasemen = $this->cetakKlasemen();
  39.         $klubList = array_keys($klasemen);
  40.  
  41.         if ($peringkat < 1 || $peringkat > count($klubList)) {
  42.             return null;
  43.         }
  44.  
  45.         return $klubList[$peringkat - 1];
  46.     }
  47. }
  48.  
  49. $klasemen = new Klasemen(['Liverpool', 'Chelsea', 'Arsenal']);
  50.  
  51. $klasemen->catatPermainan('Arsenal', 'Liverpool', '2:1');
  52. $klasemen->catatPermainan('Arsenal', 'Chelsea', '1:1');
  53. $klasemen->catatPermainan('Chelsea', 'Arsenal', '0:3');
  54. $klasemen->catatPermainan('Chelsea', 'Liverpool', '3:2');
  55. $klasemen->catatPermainan('Liverpool', 'Arsenal', '2:2');
  56. $klasemen->catatPermainan('Liverpool', 'Chelsea', '0:0');
  57. $klasemen->catatPermainan('Madrid', 'Barcelona', '10:10');
  58.  
  59. print_r($klasemen->cetakKlasemen());
  60.  
  61. echo 'Peringkat ke-2: ' . $klasemen->ambilPeringkat(6);
  62.  
Success #stdin #stdout #stderr 0.03s 26016KB
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stdin
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Standard input is empty
stdout
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Array
(
    [Arsenal] => 8
    [Chelsea] => 5
    [Liverpool] => 2
    [Madrid] => 1
    [Barcelona] => 1
)
Peringkat ke-2:
stderr
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PHP Notice:  Undefined index: Madrid in /home/AafdOE/prog.php on line 25
PHP Notice:  Undefined index: Barcelona in /home/AafdOE/prog.php on line 26
https://ideone.com/vfCXVE
language:
PHP (php 7.3.5)
created:
2 days ago
visibility:
public

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