PHPで学ぶオブジェクト指向プログラミング入門 / Introduction to OOP with PHP

PHP Conference Japan 2021 で発表した「PHPで学ぶオブジェクト指向プログラミング入門」のスライドです。

# URL
PHP Conference Japan 2021: https://phpcon.php.gr.jp/2021/
CfP: https://fortee.jp/phpcon-2021/proposal/868cc3d1-114d-4543-a59f-e068b0fb8fa5
YouTube: https://www.youtube.com/c/narusemi
HomePage: https://nrslib.com
Twitter: https://twitter.com/nrslib

Transcript

1. View Slide

2. $profile = new Profile();
   $profile->present();
   class Profile
   {
   public function present()
   {
   echo "Name:";
   echo " 成瀬 允宣";
   echo "Job:";
   echo " プログラマ";
   echo "Achievement:";
   echo " PHP Conference 2019:"
   . " 思想と理想の果てに -- クリーンアーキテクチャのWEBフレームワークを作ろう";
   echo " PHP Conference 2020:"
   . " PHP WEBアプリケーション設計入門――10年先を見据えて作る";
   echo " Object-Oriented Conference 2020:"
   . " keynote: Object-Oriented Diversity";
   }
   }
   

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6. OOP
   TIPS
   

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7. OOP
   TIPS
   

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24. SYMBOL NAMES:
    1: _main
    2: _@2
    3: _printf
    ================================================================================
    SECTION SIZE = 0x00000015; NAME = .text
    DEFINED SYMBOLS:
    name = _main
    offset = 0x00000000; type = 0x0020; class = 0x0002
    00000000: 55 push ebp
    00000001: 89 E5 mov ebp,esp
    00000003: 68 00 00 00 00 push offset _@2
    00000008: E8 00 00 00 00 call _printf
    0000000D: 59 pop ecx
    0000000E: B8 00 00 00 00 mov eax,0
    00000013: C9 leave
    00000014: C3 ret near
    ================================================================================
    SECTION SIZE = 0x0000000E; NAME = .data
    00000000: 48 65 6C 6C 6F 20 57 6F 72 6C 64 2E 0A 00 Hello World...
    DEFINED SYMBOLS:
    name = _@2
    offset = 0x00000000; type = 0x0000; class = 0x0003
    ================================================================================
    

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25. View Slide

26. section .data
    msg db "Hello world!"
    section .text
    global _start
    _start:
    mov rax, 1
    mov rdi, 1
    mov rsi, msg
    mov rdx, 12
    syscall
    mov rax, 60
    mov rdi, 0
    syscall
    

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28. 000010 IDENTIFICATION DIVISION.
    000020 PROGRAM-ID. SAMPLE-01.
    000030*
    000040 ENVIRONMENT DIVISION.
    000050*
    000060 DATA DIVISION.
    000070*
    000080 PROCEDURE DIVISION.
    000090 MAIN.
    000100 DISPLAY "Hello world!" UPON CONSOLE.
    000110 STOP RUN.
    

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29. 000010 IDENTIFICATION DIVISION.
    000020 PROGRAM-ID. SAMPLE-01.
    000030*
    000040 ENVIRONMENT DIVISION.
    000050*
    000060 DATA DIVISION.
    000070*
    000080 PROCEDURE DIVISION.
    000090 MAIN.
    000100 DISPLAY "Hello world!" UPON CONSOLE.
    000110 STOP RUN.
    

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35. View Slide

36. $a = 3;
    $b = 5;
    $c = $a + $b;
    

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37. $a = 3;
    $b = 5;
    $c = $a + $b;
    

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38. $a = 3;
    $b = 5;
    $c = $a + $b;
    

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40. $a = 0b0011;
    $b = 0b0101;
    $c = $a + $b;
    

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42. $bottom = 3;
    $height = 6;
    $area = $bottom * $height / 2;
    

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43. $bottom = 3;
    $height = 6;
    $area = $bottom * $height / 2;
    

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44. $bottom = 3;
    $height = 6;
    $area = $bottom * $height / 2;
    

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45. $bottom = 3;
    $height = 6;
    $area = $bottom * $height / 2;
    

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46. $bottom = 3;
    $height = 6;
    $area = $bottom * $height / 2;
    

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47. $bottom = 3;
    $height = 6;
    $area = $bottom * $height / 2;
    

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48. $bottom = 3;
    $height = 6;
    $area = $bottom * $height / 2;
    

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50. $area = calculate_area_of_triangle(3, 6);
    function calculate_area_of_triangle(int $bottom, int $height)
    {
    return $bottom * $height / 2;
    }
    

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51. $area = calculate_area_of_triangle(3, 6);
    function calculate_area_of_triangle(int $bottom, int $height)
    {
    return $bottom * $height / 2;
    }
    

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52. $area = calculate_area_of_triangle(3, 6);
    function calculate_area_of_triangle(int $bottom, int $height)
    {
    return $bottom * $height / 2;
    }
    

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53. $area = calculate_area_of_triangle(3, 6);
    function calculate_area_of_triangle(int $bottom, int $height)
    {
    return $bottom * $height / 2;
    }
    

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54. $area = calculate_area_of_triangle(3, 6);
    function calculate_area_of_triangle(int $bottom, int $height)
    {
    return $bottom * $height / 2;
    }
    

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55. function crypt_password(string $password)
    {
    return password_hash($password, PASSWORD_DEFAULT);
    }
    

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56. function crypt_password(string $password)
    {
    return password_hash($password, PASSWORD_DEFAULT, ["cost" => 12]);
    }
    

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61. function play(int $left_hand, int $right_hand)
    {
    $result = judge($left_hand, $right_hand);
    show_result($result);
    }
    

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62. function play(int $left_hand, int $right_hand)
    {
    $result = judge($left_hand, $right_hand);
    show_result($result);
    }
    

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63. function play(int $left_hand, int $right_hand)
    {
    $result = judge($left_hand, $right_hand);
    show_result($result);
    }
    

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64. function play(int $left_hand, int $right_hand)
    {
    $result = judge($left_hand, $right_hand);
    show_result($result);
    }
    

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65. function play(int $left_hand, int $right_hand)
    {
    $result = judge($left_hand, $right_hand);
    show_result($result);
    }
    

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66. function judge(int $left_hand, int $right_hand)
    {
    if ($left_hand === 0) { // Goo
    if ($right_hand === 0) { // Goo
    return 0;
    } else if ($right_hand === 1) { // Choki
    return 1;
    } else { //Par
    return -1;
    }
    } else if ($left_hand === 1) { // Choki
    if ($right_hand === 0) { // Goo
    return -1;
    } else if ($right_hand === 1) { // Choki
    return 0;
    } else { //Par
    return 1;
    }
    } else { // Par
    if ($right_hand === 2) { // Goo
    return 1;
    } else if ($right_hand === 1) { // Choki
    return -1;
    } else { //Par
    return 0;
    }
    }
    }
    

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67. function judge(int $left_hand, int $right_hand)
    {
    if ($left_hand === 0) { // Goo
    if ($right_hand === 0) { // Goo
    return 0;
    } else if ($right_hand === 1) { // Choki
    return 1;
    } else { //Par
    return -1;
    }
    } else if ($left_hand === 1) { // Choki
    if ($right_hand === 0) { // Goo
    return -1;
    } else if ($right_hand === 1) { // Choki
    return 0;
    } else { //Par
    return 1;
    }
    } else { // Par
    if ($right_hand === 2) { // Goo
    return 1;
    } else if ($right_hand === 1) { // Choki
    return -1;
    } else { //Par
    return 0;
    }
    }
    }
    

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68. function play(int $left_hand, int $right_hand)
    {
    $result = judge($left_hand, $right_hand);
    show_result($result);
    }
    

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69. function play(int $left_hand, int $right_hand)
    {
    $result = judge($left_hand, $right_hand);
    show_result($result);
    }
    

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70. function show_result(int $result)
    {
    if ($result === 1) {
    echo "勝利";
    } else if ($result === 0) {
    echo "引き分け";
    } else {
    echo "敗北";
    }
    }
    

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71. function show_result(int $result)
    {
    if ($result === 1) {
    echo "勝利";
    } else if ($result === 0) {
    echo "引き分け";
    } else {
    echo "敗北";
    }
    }
    

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72. function judge(int $left_hand, int $right_hand)
    {
    if ($left_hand === 0) { // Goo
    if ($right_hand === 0) { // Goo
    return 0;
    } else if ($right_hand === 1) { // Choki
    return 1;
    } else { //Par
    return -1;
    }
    } else if ($left_hand === 1) { // Choki
    if ($right_hand === 0) { // Goo
    return -1;
    } else if ($right_hand === 1) { // Choki
    return 0;
    } else { //Par
    return 1;
    }
    } else { // Par
    if ($right_hand === 2) { // Goo
    return 1;
    } else if ($right_hand === 1) { // Choki
    return -1;
    } else { //Par
    return 0;
    }
    }
    }
    

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73. function judge(int $left_hand, int $right_hand)
    {
    if ($left_hand === 0) { // Goo
    if ($right_hand === 0) { // Goo
    return 0;
    } else if ($right_hand === 1) { // Choki
    return 1;
    } else { //Par
    return -1;
    }
    } else if ($left_hand === 1) { // Choki
    if ($right_hand === 0) { // Goo
    return -1;
    } else if ($right_hand === 1) { // Choki
    return 0;
    } else { //Par
    return 1;
    }
    } else { // Par
    if ($right_hand === 2) { // Goo
    return 1;
    } else if ($right_hand === 1) { // Choki
    return -1;
    } else { //Par
    return 0;
    }
    }
    }
    

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74. function judge(int $left_hand, int $right_hand)
    {
    if ($left_hand === 0) { // Goo
    if ($right_hand === 0) { // Goo
    return "draw";
    } else if ($right_hand === 1) { // Choki
    return "win";
    } else { //Par
    return "lose";
    }
    } else if ($left_hand === 1) { // Choki
    if ($right_hand === 0) { // Goo
    return "lose";
    } else if ($right_hand === 1) { // Choki
    return "draw";
    } else { //Par
    return "win";
    }
    } else { // Par
    if ($right_hand === 2) { // Goo
    return "win";
    } else if ($right_hand === 1) { // Choki
    return "lose";
    } else { //Par
    return "draw";
    }
    }
    }
    

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75. function judge(int $left_hand, int $right_hand)
    {
    if ($left_hand === 0) { // Goo
    if ($right_hand === 0) { // Goo
    return "draw";
    } else if ($right_hand === 1) { // Choki
    return "win";
    } else { //Par
    return "lose";
    }
    } else if ($left_hand === 1) { // Choki
    if ($right_hand === 0) { // Goo
    return "lose";
    } else if ($right_hand === 1) { // Choki
    return "draw";
    } else { //Par
    return "win";
    }
    } else { // Par
    if ($right_hand === 2) { // Goo
    return "win";
    } else if ($right_hand === 1) { // Choki
    return "lose";
    } else { //Par
    return "draw";
    }
    }
    }
    

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76. function judge(int $left_hand, int $right_hand)
    {
    if ($left_hand === 0) { // Goo
    if ($right_hand === 0) { // Goo
    return "draw";
    } else if ($right_hand === 1) { // Choki
    return "win";
    } else { //Par
    return "lose";
    }
    } else if ($left_hand === 1) { // Choki
    if ($right_hand === 0) { // Goo
    return "lose";
    } else if ($right_hand === 1) { // Choki
    return "draw";
    } else { //Par
    return "win";
    }
    } else { // Par
    if ($right_hand === 2) { // Goo
    return "win";
    } else if ($right_hand === 1) { // Choki
    return "lose";
    } else { //Par
    return "draw";
    }
    }
    }
    

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77. function judge(int $left_hand, int $right_hand)
    {
    if ($left_hand === 0) { // Goo
    if ($right_hand === 0) { // Goo
    return "draw";
    } else if ($right_hand === 1) { // Choki
    return "win";
    } else { //Par
    return "lose";
    }
    } else if ($left_hand === 1) { // Choki
    if ($right_hand === 0) { // Goo
    return "lose";
    } else if ($right_hand === 1) { // Choki
    return "draw";
    } else { //Par
    return "win";
    }
    } else { // Par
    if ($right_hand === 2) { // Goo
    return "win";
    } else if ($right_hand === 1) { // Choki
    return "lose";
    } else { //Par
    return "draw";
    }
    }
    }
    function show_result(int $result)
    {
    if ($result === 1) {
    echo "勝利";
    } else if ($result === 0) {
    echo "引き分け";
    } else {
    echo "敗北";
    }
    }
    

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78. function judge(int $left_hand, int $right_hand)
    {
    if ($left_hand === 0) { // Goo
    if ($right_hand === 0) { // Goo
    return "draw";
    } else if ($right_hand === 1) { // Choki
    return "win";
    } else { //Par
    return "lose";
    }
    } else if ($left_hand === 1) { // Choki
    if ($right_hand === 0) { // Goo
    return "lose";
    } else if ($right_hand === 1) { // Choki
    return "draw";
    } else { //Par
    return "win";
    }
    } else { // Par
    if ($right_hand === 2) { // Goo
    return "win";
    } else if ($right_hand === 1) { // Choki
    return "lose";
    } else { //Par
    return "draw";
    }
    }
    }
    function show_result(int $result)
    {
    if ($result === 1) {
    echo "勝利";
    } else if ($result === 0) {
    echo "引き分け";
    } else {
    echo "敗北";
    }
    }
    

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84. OOP
    TIPS
    

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85. function judge(int $left_hand, int $right_hand)
    {
    if ($left_hand === 0) { // Goo
    if ($right_hand === 0) { // Goo
    return 0;
    } else if ($right_hand === 1) { // Choki
    return 1;
    } else { //Par
    return -1;
    }
    } else if ($left_hand === 1) { // Choki
    if ($right_hand === 0) { // Goo
    return -1;
    } else if ($right_hand === 1) { // Choki
    return 0;
    } else { //Par
    return 1;
    }
    } else { // Par
    if ($right_hand === 2) { // Goo
    return 1;
    } else if ($right_hand === 1) { // Choki
    return -1;
    } else { //Par
    return 0;
    }
    }
    }
    function show_result(int $result)
    {
    if ($result === 1) {
    echo "勝利";
    } else if ($result === 0) {
    echo "引き分け";
    } else {
    echo "敗北";
    }
    }
    

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86. function judge(int $left_hand, int $right_hand)
    {
    if ($left_hand === 0) { // Goo
    if ($right_hand === 0) { // Goo
    return 0;
    } else if ($right_hand === 1) { // Choki
    return 1;
    } else { //Par
    return -1;
    }
    } else if ($left_hand === 1) { // Choki
    if ($right_hand === 0) { // Goo
    return -1;
    } else if ($right_hand === 1) { // Choki
    return 0;
    } else { //Par
    return 1;
    }
    } else { // Par
    if ($right_hand === 2) { // Goo
    return 1;
    } else if ($right_hand === 1) { // Choki
    return -1;
    } else { //Par
    return 0;
    }
    }
    }
    function show_result(int $result)
    {
    if ($result === 1) {
    echo "勝利";
    } else if ($result === 0) {
    echo "引き分け";
    } else {
    echo "敗北";
    }
    }
    

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87. function judge(int $left_hand, int $right_hand)
    {
    if ($left_hand === 0) { // Goo
    if ($right_hand === 0) { // Goo
    return 0;
    } else if ($right_hand === 1) { // Choki
    return 1;
    } else { //Par
    return -1;
    }
    } else if ($left_hand === 1) { // Choki
    if ($right_hand === 0) { // Goo
    return -1;
    } else if ($right_hand === 1) { // Choki
    return 0;
    } else { //Par
    return 1;
    }
    } else { // Par
    if ($right_hand === 2) { // Goo
    return 1;
    } else if ($right_hand === 1) { // Choki
    return -1;
    } else { //Par
    return 0;
    }
    }
    }
    function show_result(int $result)
    {
    if ($result === 1) {
    echo "勝利";
    } else if ($result === 0) {
    echo "引き分け";
    } else {
    echo "敗北";
    }
    }
    

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91. function judge(int $left_hand, int $right_hand)
    {
    if ($left_hand === 0) { // Goo
    if ($right_hand === 0) { // Goo
    return 0;
    } else if ($right_hand === 1) { // Choki
    return 1;
    } else { //Par
    return -1;
    }
    function show_result(int $result)
    {
    if ($result === 1) {
    echo "勝利";
    } else if ($result === 0) {
    echo "引き分け";
    } else {
    echo "敗北";
    }
    }
    

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93. function play(int $leftHand, int $rightHand)
    {
    $result = $this->judge($leftHand, $rightHand);
    $this->showResult($result);
    }
    function showResult(int $result)
    {
    if ($result === 1) {
    echo "勝利";
    } else if ($result === 0) {
    echo "引き分け";
    } else {
    echo "敗北";
    }
    }
    function judge(int $leftHand, int $rightHand)
    {
    if ($leftHand === 0) { // Goo
    if ($rightHand === 0) { // Goo
    return 0;
    } else if ($rightHand === 1) { // Choki
    return 1;
    } else { //Par
    return -1;
    }
    } else if ($leftHand === 1) { // Choki
    if ($rightHand === 0) { // Goo
    return -1;
    } else if ($rightHand === 1) { // Choki
    return 0;
    } else { //Par
    return 1;
    }
    } else { // Par
    if ($rightHand === 2) { // Goo
    return 1;
    } else if ($rightHand === 1) { // Choki
    return -1;
    } else { //Par
    return 0;
    }
    }
    }
    

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94. class JankenGame
    {
    function play(int $leftHand, int $rightHand)
    {
    $result = $this->judge($leftHand, $rightHand);
    $this->showResult($result);
    }
    function showResult(int $result)
    {
    if ($result === 1) {
    echo "勝利";
    } else if ($result === 0) {
    echo "引き分け";
    } else {
    echo "敗北";
    }
    }
    function judge(int $leftHand, int $rightHand)
    {
    if ($leftHand === 0) { // Goo
    if ($rightHand === 0) { // Goo
    return 0;
    } else if ($rightHand === 1) { // Choki
    return 1;
    } else { //Par
    return -1;
    }
    } else if ($leftHand === 1) { // Choki
    if ($rightHand === 0) { // Goo
    return -1;
    } else if ($rightHand === 1) { // Choki
    return 0;
    } else { //Par
    return 1;
    }
    } else { // Par
    if ($rightHand === 2) { // Goo
    return 1;
    } else if ($rightHand === 1) { // Choki
    return -1;
    } else { //Par
    return 0;
    }
    }
    }
    }
    

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95. class JankenGame
    {
    function play(int $leftHand, int $rightHand)
    {
    $result = $this->judge($leftHand, $rightHand);
    $this->showResult($result);
    }
    function showResult(int $result)
    {
    if ($result === 1) {
    echo "勝利";
    } else if ($result === 0) {
    echo "引き分け";
    } else {
    echo "敗北";
    }
    }
    function judge(int $leftHand, int $rightHand)
    {
    if ($leftHand === 0) { // Goo
    if ($rightHand === 0) { // Goo
    return 0;
    } else if ($rightHand === 1) { // Choki
    return 1;
    } else { //Par
    return -1;
    }
    } else if ($leftHand === 1) { // Choki
    if ($rightHand === 0) { // Goo
    return -1;
    } else if ($rightHand === 1) { // Choki
    return 0;
    } else { //Par
    return 1;
    }
    } else { // Par
    if ($rightHand === 2) { // Goo
    return 1;
    } else if ($rightHand === 1) { // Choki
    return -1;
    } else { //Par
    return 0;
    }
    }
    }
    }
    

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96. class JankenGame
    {
    function play(int $leftHand, int $rightHand)
    {
    $result = $this->judge($leftHand, $rightHand);
    $this->showResult($result);
    }
    function showResult(int $result)
    {
    if ($result === 1) {
    echo "勝利";
    } else if ($result === 0) {
    echo "引き分け";
    } else {
    echo "敗北";
    }
    }
    function judge(int $leftHand, int $rightHand)
    {
    if ($leftHand === 0) { // Goo
    if ($rightHand === 0) { // Goo
    return 0;
    } else if ($rightHand === 1) { // Choki
    return 1;
    } else { //Par
    return -1;
    }
    } else if ($leftHand === 1) { // Choki
    if ($rightHand === 0) { // Goo
    return -1;
    } else if ($rightHand === 1) { // Choki
    return 0;
    } else { //Par
    return 1;
    }
    } else { // Par
    if ($rightHand === 2) { // Goo
    return 1;
    } else if ($rightHand === 1) { // Choki
    return -1;
    } else { //Par
    return 0;
    }
    }
    }
    }
    

    View Slide

97. class JankenGame
    {
    function play(int $leftHand, int $rightHand)
    {
    $result = $this->judge($leftHand, $rightHand);
    $this->showResult($result);
    }
    function showResult(int $result)
    {
    if ($result === 1) {
    echo "勝利";
    } else if ($result === 0) {
    echo "引き分け";
    } else {
    echo "敗北";
    }
    }
    function judge(int $leftHand, int $rightHand)
    {
    if ($leftHand === 0) { // Goo
    if ($rightHand === 0) { // Goo
    return 0;
    } else if ($rightHand === 1) { // Choki
    return 1;
    } else { //Par
    return -1;
    }
    } else if ($leftHand === 1) { // Choki
    if ($rightHand === 0) { // Goo
    return -1;
    } else if ($rightHand === 1) { // Choki
    return 0;
    } else { //Par
    return 1;
    }
    } else { // Par
    if ($rightHand === 2) { // Goo
    return 1;
    } else if ($rightHand === 1) { // Choki
    return -1;
    } else { //Par
    return 0;
    }
    }
    }
    }
    

    View Slide

98. class JankenGame
    {
    function play(int $leftHand, int $rightHand)
    {
    $result = $this->judge($leftHand, $rightHand);
    $this->showResult($result);
    }
    function showResult(int $result)
    {
    if ($result === 1) {
    echo "勝利";
    } else if ($result === 0) {
    echo "引き分け";
    } else {
    echo "敗北";
    }
    }
    function judge(int $leftHand, int $rightHand)
    {
    if ($leftHand === 0) { // Goo
    if ($rightHand === 0) { // Goo
    return 0;
    } else if ($rightHand === 1) { // Choki
    return 1;
    } else { //Par
    return -1;
    }
    } else if ($leftHand === 1) { // Choki
    if ($rightHand === 0) { // Goo
    return -1;
    } else if ($rightHand === 1) { // Choki
    return 0;
    } else { //Par
    return 1;
    }
    } else { // Par
    if ($rightHand === 2) { // Goo
    return 1;
    } else if ($rightHand === 1) { // Choki
    return -1;
    } else { //Par
    return 0;
    }
    }
    }
    }
    

    View Slide

99. class JankenGame
    {
    function play(int $leftHand, int $rightHand)
    {
    $result = $this->judge($leftHand, $rightHand);
    $this->showResult($result);
    }
    function showResult(int $result)
    {
    if ($result === 1) {
    echo "勝利";
    } else if ($result === 0) {
    echo "引き分け";
    } else {
    echo "敗北";
    }
    }
    function judge(int $leftHand, int $rightHand)
    {
    if ($leftHand === 0) { // Goo
    if ($rightHand === 0) { // Goo
    return 0;
    } else if ($rightHand === 1) { // Choki
    return 1;
    } else { //Par
    return -1;
    }
    } else if ($leftHand === 1) { // Choki
    if ($rightHand === 0) { // Goo
    return -1;
    } else if ($rightHand === 1) { // Choki
    return 0;
    } else { //Par
    return 1;
    }
    } else { // Par
    if ($rightHand === 2) { // Goo
    return 1;
    } else if ($rightHand === 1) { // Choki
    return -1;
    } else { //Par
    return 0;
    }
    }
    }
    }
    

    View Slide

100. $game = new JankenGame();
     $game->play(1, 2);
     

     View Slide

101. $game = new JankenGame();
     $game->play(1, 2);
     class JankenGame
     {
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result);
     }
     function showResult(int $result)
     {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     }
     :
     

     View Slide

102. $game = new JankenGame();
     $game->play(1, 2);
     class JankenGame
     {
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result);
     }
     function showResult(int $result)
     {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     }
     :
     

     View Slide

103. $game = new JankenGame();
     $game->play(1, 2);
     class JankenGame
     {
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result);
     }
     function showResult(int $result)
     {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     }
     :
     

     View Slide

104. $game = new JankenGame();
     $game->play(1, 2);
     class JankenGame
     {
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result);
     }
     function showResult(int $result)
     {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     }
     :
     

     View Slide

105. $game = new JankenGame();
     $game->play(1, 2);
     class JankenGame
     {
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result);
     }
     function showResult(int $result)
     {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     }
     :
     

     View Slide

106. $game = new JankenGame();
     $game->play(1, 2);
     class JankenGame
     {
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result);
     }
     function showResult(int $result)
     {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     }
     :
     

     View Slide

107. $game = new JankenGame();
     $game->play(1, 2);
     class JankenGame
     {
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result);
     }
     function showResult(int $result)
     {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     }
     :
     

     View Slide

108. $message = "hello";
     

     View Slide

109. $message = "hello";
     $message = new String(['h', 'e', 'l', 'l', 'o'])
     

     View Slide

110. $game = new JankenGame();
     $game->play(1, 2);
     class JankenGame
     {
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result);
     }
     function showResult(int $result)
     {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     }
     :
     

     View Slide

111. $game = new JankenGame();
     $game->play(1, 2);
     class JankenGame
     {
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result);
     }
     function showResult(int $result)
     {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     }
     :
     

     View Slide

112. $game = new JankenGame();
     $game->play(1, 2);
     class JankenGame
     {
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result);
     }
     function showResult(int $result)
     {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     }
     :
     

     View Slide

113. $game = new JankenGame();
     $game->play(1, 2);
     class JankenGame
     {
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result);
     }
     function showResult(int $result)
     {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     }
     :
     

     View Slide

114. $game = new JankenGame();
     $game->play(1, 2);
     class JankenGame
     {
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result);
     }
     function showResult(int $result)
     {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     }
     :
     

     View Slide

115. $game = new JankenGame();
     $game->play(1, 2);
     class JankenGame
     {
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result);
     }
     function showResult(int $result)
     {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     }
     :
     

     View Slide

116. View Slide

117. function judge(int $left_hand, int $right_hand)
     {
     if ($left_hand === 0) { // Goo
     if ($right_hand === 0) { // Goo
     return 0;
     } else if ($right_hand === 1) { // Choki
     return 1;
     } else { //Par
     return -1;
     }
     } else if ($left_hand === 1) { // Choki
     if ($right_hand === 0) { // Goo
     return -1;
     } else if ($right_hand === 1) { // Choki
     return 0;
     } else { //Par
     return 1;
     }
     } else { // Par
     if ($right_hand === 2) { // Goo
     return 1;
     } else if ($right_hand === 1) { // Choki
     return -1;
     } else { //Par
     return 0;
     }
     }
     }
     

     View Slide

118. function judge(int $left_hand, int $right_hand)
     {
     if ($left_hand === 0) { // Goo
     if ($right_hand === 0) { // Goo
     return 0;
     } else if ($right_hand === 1) { // Choki
     return 1;
     } else { //Par
     return -1;
     }
     } else if ($left_hand === 1) { // Choki
     if ($right_hand === 0) { // Goo
     return -1;
     } else if ($right_hand === 1) { // Choki
     return 0;
     } else { //Par
     return 1;
     }
     } else { // Par
     if ($right_hand === 2) { // Goo
     return 1;
     } else if ($right_hand === 1) { // Choki
     return -1;
     } else { //Par
     return 0;
     }
     }
     }
     

     View Slide

119. function judge(int $left_hand, int $right_hand)
     {
     if ($left_hand === 0) { // Goo
     if ($right_hand === 0) { // Goo
     return "draw";
     } else if ($right_hand === 1) { // Choki
     return "win";
     } else { //Par
     return "lose";
     }
     } else if ($left_hand === 1) { // Choki
     if ($right_hand === 0) { // Goo
     return "lose";
     } else if ($right_hand === 1) { // Choki
     return "draw";
     } else { //Par
     return "win";
     }
     } else { // Par
     if ($right_hand === 2) { // Goo
     return "win";
     } else if ($right_hand === 1) { // Choki
     return "lose";
     } else { //Par
     return "draw";
     }
     }
     }
     

     View Slide

120. View Slide

121. function showResult(int $result)
     {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     }
     

     View Slide

122. View Slide

123. class JankenGame
     {
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result);
     }
     function showResult(int $result)
     {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     }
     function judge(int $leftHand, int $rightHand)
     {
     if ($leftHand === 0) { // Goo
     if ($rightHand === 0) { // Goo
     return 0;
     } else if ($rightHand === 1) { // Choki
     return 1;
     } else { //Par
     return -1;
     }
     } else if ($leftHand === 1) { // Choki
     if ($rightHand === 0) { // Goo
     return -1;
     } else if ($rightHand === 1) { // Choki
     return 0;
     } else { //Par
     return 1;
     }
     } else { // Par
     if ($rightHand === 2) { // Goo
     return 1;
     } else if ($rightHand === 1) { // Choki
     return -1;
     } else { //Par
     return 0;
     }
     }
     }
     }
     

     View Slide

124. class JankenGame
     {
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result);
     }
     function showResult(int $result)
     {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     }
     function judge(int $leftHand, int $rightHand)
     {
     if ($leftHand === 0) { // Goo
     if ($rightHand === 0) { // Goo
     return 0;
     } else if ($rightHand === 1) { // Choki
     return 1;
     } else { //Par
     return -1;
     }
     } else if ($leftHand === 1) { // Choki
     if ($rightHand === 0) { // Goo
     return -1;
     } else if ($rightHand === 1) { // Choki
     return 0;
     } else { //Par
     return 1;
     }
     } else { // Par
     if ($rightHand === 2) { // Goo
     return 1;
     } else if ($rightHand === 1) { // Choki
     return -1;
     } else { //Par
     return 0;
     }
     }
     }
     }
     

     View Slide

125. class JankenGame
     {
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result);
     }
     function showResult(int $result)
     {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     }
     function judge(int $leftHand, int $rightHand)
     {
     if ($leftHand === 0) { // Goo
     if ($rightHand === 0) { // Goo
     return "draw";
     } else if ($rightHand === 1) { // Choki
     return "win";
     } else { //Par
     return "lose";
     }
     } else if ($leftHand === 1) { // Choki
     if ($rightHand === 0) { // Goo
     return "lose";
     } else if ($rightHand === 1) { // Choki
     return "draw";
     } else { //Par
     return "win";
     }
     } else { // Par
     if ($rightHand === 2) { // Goo
     return "win";
     } else if ($rightHand === 1) { // Choki
     return "lose";
     } else { //Par
     return "draw";
     }
     }
     }
     }
     

     View Slide

126. class JankenGame
     {
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result);
     }
     function showResult(int $result)
     {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     }
     function judge(int $leftHand, int $rightHand)
     {
     if ($leftHand === 0) { // Goo
     if ($rightHand === 0) { // Goo
     return "draw";
     } else if ($rightHand === 1) { // Choki
     return "win";
     } else { //Par
     return "lose";
     }
     } else if ($leftHand === 1) { // Choki
     if ($rightHand === 0) { // Goo
     return "lose";
     } else if ($rightHand === 1) { // Choki
     return "draw";
     } else { //Par
     return "win";
     }
     } else { // Par
     if ($rightHand === 2) { // Goo
     return "win";
     } else if ($rightHand === 1) { // Choki
     return "lose";
     } else { //Par
     return "draw";
     }
     }
     }
     }
     

     View Slide

127. class JankenGame
     {
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result);
     }
     function showResult(int $result)
     {
     if ($result === "win") {
     echo "勝利";
     } else if ($result === "draw") {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     }
     function judge(int $leftHand, int $rightHand)
     {
     if ($leftHand === 0) { // Goo
     if ($rightHand === 0) { // Goo
     return "draw";
     } else if ($rightHand === 1) { // Choki
     return "win";
     } else { //Par
     return "lose";
     }
     } else if ($leftHand === 1) { // Choki
     if ($rightHand === 0) { // Goo
     return "lose";
     } else if ($rightHand === 1) { // Choki
     return "draw";
     } else { //Par
     return "win";
     }
     } else { // Par
     if ($rightHand === 2) { // Goo
     return "win";
     } else if ($rightHand === 1) { // Choki
     return "lose";
     } else { //Par
     return "draw";
     }
     }
     }
     }
     

     View Slide

128. class JankenGame
     {
     function play(int $leftHand, int $rightHand)
     {
     $game = new JankenGame();
     $game->play(1, 2);
     

     View Slide

129. class JankenGame
     {
     function play(int $leftHand, int $rightHand)
     {
     $game = new JankenGame();
     $game->play(1, 2);
     

     View Slide

130. class JankenGame
     {
     function play(int $leftHand, int $rightHand)
     {
     $game = new JankenGame();
     $game->play(1, 2);
     

     View Slide

131. View Slide

132. OOP
     TIPS
     

     View Slide

133. View Slide

134. function judge(int $leftHand, int $rightHand)
     {
     if ($leftHand === 0) { // Goo
     if ($rightHand === 0) { // Goo
     return 0;
     } else if ($rightHand === 1) { // Choki
     return 1;
     } else { //Par
     return -1;
     }
     } else if ($leftHand === 1) { // Choki
     if ($rightHand === 0) { // Goo
     return -1;
     } else if ($rightHand === 1) { // Choki
     return 0;
     } else { //Par
     return 1;
     }
     } else { // Par
     if ($rightHand === 2) { // Goo
     return 1;
     } else if ($rightHand === 1) { // Choki
     return -1;
     } else { //Par
     return 0;
     }
     }
     }
     }
     class JankenGame
     {
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result);
     }
     function showResult(int $result)
     {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     }
     } else {
     if ($result === 1) {
     echo "win";
     } else if ($result === 0) {
     echo "draw";
     } else {
     echo "lose";
     }
     }
     

     View Slide

135. function judge(int $leftHand, int $rightHand)
     {
     if ($leftHand === 0) { // Goo
     if ($rightHand === 0) { // Goo
     return 0;
     } else if ($rightHand === 1) { // Choki
     return 1;
     } else { //Par
     return -1;
     }
     } else if ($leftHand === 1) { // Choki
     if ($rightHand === 0) { // Goo
     return -1;
     } else if ($rightHand === 1) { // Choki
     return 0;
     } else { //Par
     return 1;
     }
     } else { // Par
     if ($rightHand === 2) { // Goo
     return 1;
     } else if ($rightHand === 1) { // Choki
     return -1;
     } else { //Par
     return 0;
     }
     }
     }
     }
     class JankenGame
     {
     function play(int $leftHand, int $rightHand, string $lang)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result, $lang);
     }
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     } else {
     if ($result === 1) {
     echo "win";
     } else if ($result === 0) {
     echo "draw";
     } else {
     echo "lose";
     }
     }
     }
     

     View Slide

136. function judge(int $leftHand, int $rightHand)
     {
     if ($leftHand === 0) { // Goo
     if ($rightHand === 0) { // Goo
     return 0;
     } else if ($rightHand === 1) { // Choki
     return 1;
     } else { //Par
     return -1;
     }
     } else if ($leftHand === 1) { // Choki
     if ($rightHand === 0) { // Goo
     return -1;
     } else if ($rightHand === 1) { // Choki
     return 0;
     } else { //Par
     return 1;
     }
     } else { // Par
     if ($rightHand === 2) { // Goo
     return 1;
     } else if ($rightHand === 1) { // Choki
     return -1;
     } else { //Par
     return 0;
     }
     }
     }
     }
     class JankenGame
     {
     function play(int $leftHand, int $rightHand, string $lang)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result, $lang);
     }
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     } else {
     if ($result === 1) {
     echo "win";
     } else if ($result === 0) {
     echo "draw";
     } else {
     echo "lose";
     }
     }
     }
     

     View Slide

137. function judge(int $leftHand, int $rightHand)
     {
     if ($leftHand === 0) { // Goo
     if ($rightHand === 0) { // Goo
     return 0;
     } else if ($rightHand === 1) { // Choki
     return 1;
     } else { //Par
     return -1;
     }
     } else if ($leftHand === 1) { // Choki
     if ($rightHand === 0) { // Goo
     return -1;
     } else if ($rightHand === 1) { // Choki
     return 0;
     } else { //Par
     return 1;
     }
     } else { // Par
     if ($rightHand === 2) { // Goo
     return 1;
     } else if ($rightHand === 1) { // Choki
     return -1;
     } else { //Par
     return 0;
     }
     }
     }
     }
     class JankenGame
     {
     function play(int $leftHand, int $rightHand, string $lang)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result, $lang);
     }
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     } else {
     if ($result === 1) {
     echo "win";
     } else if ($result === 0) {
     echo "draw";
     } else {
     echo "lose";
     }
     }
     }
     

     View Slide

138. function judge(int $leftHand, int $rightHand)
     {
     if ($leftHand === 0) { // Goo
     if ($rightHand === 0) { // Goo
     return 0;
     } else if ($rightHand === 1) { // Choki
     return 1;
     } else { //Par
     return -1;
     }
     } else if ($leftHand === 1) { // Choki
     if ($rightHand === 0) { // Goo
     return -1;
     } else if ($rightHand === 1) { // Choki
     return 0;
     } else { //Par
     return 1;
     }
     } else { // Par
     if ($rightHand === 2) { // Goo
     return 1;
     } else if ($rightHand === 1) { // Choki
     return -1;
     } else { //Par
     return 0;
     }
     }
     }
     }
     class JankenGame
     {
     function play(int $leftHand, int $rightHand, string $lang)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result, $lang);
     }
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     } else {
     if ($result === 1) {
     echo "win";
     } else if ($result === 0) {
     echo "draw";
     } else {
     echo "lose";
     }
     }
     }
     

     View Slide

139. function judge(int $leftHand, int $rightHand)
     {
     if ($leftHand === 0) { // Goo
     if ($rightHand === 0) { // Goo
     return 0;
     } else if ($rightHand === 1) { // Choki
     return 1;
     } else { //Par
     return -1;
     }
     } else if ($leftHand === 1) { // Choki
     if ($rightHand === 0) { // Goo
     return -1;
     } else if ($rightHand === 1) { // Choki
     return 0;
     } else { //Par
     return 1;
     }
     } else { // Par
     if ($rightHand === 2) { // Goo
     return 1;
     } else if ($rightHand === 1) { // Choki
     return -1;
     } else { //Par
     return 0;
     }
     }
     }
     }
     class JankenGame
     {
     function play(int $leftHand, int $rightHand, string $lang)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result, $lang);
     }
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     } else {
     if ($result === 1) {
     echo "win";
     } else if ($result === 0) {
     echo "draw";
     } else {
     echo "lose";
     }
     }
     }
     

     View Slide

140. function judge(int $leftHand, int $rightHand)
     {
     if ($leftHand === 0) { // Goo
     if ($rightHand === 0) { // Goo
     return 0;
     } else if ($rightHand === 1) { // Choki
     return 1;
     } else { //Par
     return -1;
     }
     } else if ($leftHand === 1) { // Choki
     if ($rightHand === 0) { // Goo
     return -1;
     } else if ($rightHand === 1) { // Choki
     return 0;
     } else { //Par
     return 1;
     }
     } else { // Par
     if ($rightHand === 2) { // Goo
     return 1;
     } else if ($rightHand === 1) { // Choki
     return -1;
     } else { //Par
     return 0;
     }
     }
     }
     }
     class JankenGame
     {
     function play(int $leftHand, int $rightHand, string $lang)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result, $lang);
     }
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     } else {
     if ($result === 1) {
     echo "win";
     } else if ($result === 0) {
     echo "draw";
     } else {
     echo "lose";
     }
     }
     }
     

     View Slide

141. function judge(int $leftHand, int $rightHand)
     {
     if ($leftHand === 0) { // Goo
     if ($rightHand === 0) { // Goo
     return 0;
     } else if ($rightHand === 1) { // Choki
     return 1;
     } else { //Par
     return -1;
     }
     } else if ($leftHand === 1) { // Choki
     if ($rightHand === 0) { // Goo
     return -1;
     } else if ($rightHand === 1) { // Choki
     return 0;
     } else { //Par
     return 1;
     }
     } else { // Par
     if ($rightHand === 2) { // Goo
     return 1;
     } else if ($rightHand === 1) { // Choki
     return -1;
     } else { //Par
     return 0;
     }
     }
     }
     }
     class JankenGame
     {
     function play(int $leftHand, int $rightHand, string $lang)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result, $lang);
     }
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     } else {
     if ($result === 1) {
     echo "win";
     } else if ($result === 0) {
     echo "draw";
     } else {
     echo "lose";
     }
     }
     }
     

     View Slide

142. function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     } else if ($lang === "en") {
     if ($result === 1) {
     echo "win";
     } else if ($result === 0) {
     echo "draw";
     } else {
     echo "lose";
     }
     } else if ($lang === "ch") {
     if ($result === 1) {
     echo "你赢了";
     } else if ($result === 0) {
     echo "平局";
     } else {
     echo "你失败了";
     }
     } else if ($lang === "fr") {
     if ($result === 1) {
     echo "Vous gagnez";
     } else if ($result === 0) {
     echo "Dessiner";
     } else {
     echo "Tu perds";
     }
     } else {
     if ($result === 1) {
     echo "Du gewinnst";
     } else if ($result === 0) {
     echo "Zeichnen";
     } else {
     echo "Du verlierst";
     }
     }
     }
     

     View Slide

143. function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     } else if ($lang === "en") {
     if ($result === 1) {
     echo "win";
     } else if ($result === 0) {
     echo "draw";
     } else {
     echo "lose";
     }
     } else if ($lang === "ch") {
     if ($result === 1) {
     echo "你赢了";
     } else if ($result === 0) {
     echo "平局";
     } else {
     echo "你失败了";
     }
     } else if ($lang === "fr") {
     if ($result === 1) {
     echo "Vous gagnez";
     } else if ($result === 0) {
     echo "Dessiner";
     } else {
     echo "Tu perds";
     }
     } else {
     if ($result === 1) {
     echo "Du gewinnst";
     } else if ($result === 0) {
     echo "Zeichnen";
     } else {
     echo "Du verlierst";
     }
     }
     }
     

     View Slide

144. function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     } else if ($lang === "en") {
     if ($result === 1) {
     echo "win";
     } else if ($result === 0) {
     echo "draw";
     } else {
     echo "lose";
     }
     } else if ($lang === "ch") {
     if ($result === 1) {
     echo "你赢了";
     } else if ($result === 0) {
     echo "平局";
     } else {
     echo "你失败了";
     }
     } else if ($lang === "fr") {
     if ($result === 1) {
     echo "Vous gagnez";
     } else if ($result === 0) {
     echo "Dessiner";
     } else {
     echo "Tu perds";
     }
     } else {
     if ($result === 1) {
     echo "Du gewinnst";
     } else if ($result === 0) {
     echo "Zeichnen";
     } else {
     echo "Du verlierst";
     }
     }
     }
     

     View Slide

145. function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     } else if ($lang === "en") {
     if ($result === 1) {
     echo "win";
     } else if ($result === 0) {
     echo "draw";
     } else {
     echo "lose";
     }
     } else if ($lang === "ch") {
     if ($result === 1) {
     echo "你赢了";
     } else if ($result === 0) {
     echo "平局";
     } else {
     echo "你失败了";
     }
     } else if ($lang === "fr") {
     if ($result === 1) {
     echo "Vous gagnez";
     } else if ($result === 0) {
     echo "Dessiner";
     } else {
     echo "Tu perds";
     }
     } else {
     if ($result === 1) {
     echo "Du gewinnst";
     } else if ($result === 0) {
     echo "Zeichnen";
     } else {
     echo "Du verlierst";
     }
     }
     }
     

     View Slide

146. View Slide

147. View Slide

148. View Slide

149. class JankenGame
     {
     :
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     } else {
     if ($result === 1) {
     echo "win";
     } else if ($result === 0) {
     echo "draw";
     } else {
     echo "lose";
     }
     }
     }
     

     View Slide

150. class JankenGame
     {
     :
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     } else {
     if ($result === 1) {
     echo "win";
     } else if ($result === 0) {
     echo "draw";
     } else {
     echo "lose";
     }
     }
     }
     

     View Slide

151. class JankenGame
     {
     :
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     } else {
     if ($result === 1) {
     echo "win";
     } else if ($result === 0) {
     echo "draw";
     } else {
     echo "lose";
     }
     }
     }
     

     View Slide

152. class JankenGame
     {
     :
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     if ($result === 1) {
     echo "勝利";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "敗北";
     }
     } else {
     if ($result === 1) {
     echo "win";
     } else if ($result === 0) {
     echo "draw";
     } else {
     echo "lose";
     }
     }
     }
     

     View Slide

153. View Slide

154. class JapaneseDisplay {
     function show(int $result) {
     if ($result === 1) {
     echo "勝ち";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "負け";
     }
     }
     }
     

     View Slide

155. class JapaneseDisplay {
     function show(int $result) {
     if ($result === 1) {
     echo "勝ち";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "負け";
     }
     }
     }
     class EnglishDisplay {
     function show(int $result) {
     if ($result === 1) {
     echo "win";
     } else if ($result === 0) {
     echo "draw";
     } else {
     echo "lose";
     }
     }
     }
     

     View Slide

156. class JapaneseDisplay {
     function show(int $result) {
     if ($result === 1) {
     echo "勝ち";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "負け";
     }
     }
     }
     class EnglishDisplay {
     function show(int $result) {
     if ($result === 1) {
     echo "win";
     } else if ($result === 0) {
     echo "draw";
     } else {
     echo "lose";
     }
     }
     }
     class JankenGame
     {
     :
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     $display = new JapaneseDisplay();
     $display->show($result);
     } else {
     $display = new EnglishDisplay();
     $display->show($result);
     }
     }
     

     View Slide

157. class JapaneseDisplay {
     function show(int $result) {
     if ($result === 1) {
     echo "勝ち";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "負け";
     }
     }
     }
     class EnglishDisplay {
     function show(int $result) {
     if ($result === 1) {
     echo "win";
     } else if ($result === 0) {
     echo "draw";
     } else {
     echo "lose";
     }
     }
     }
     class JankenGame
     {
     :
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     $display = new JapaneseDisplay();
     $display->show($result);
     } else {
     $display = new EnglishDisplay();
     $display->show($result);
     }
     }
     

     View Slide

158. class JankenGame
     {
     :
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     $display = new JapaneseDisplay();
     $display->show($result);
     } else {
     $display = new EnglishDisplay();
     $display->show($result);
     }
     }
     

     View Slide

159. class JankenGame
     {
     :
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     $display = new JapaneseDisplay();
     $display->show($result);
     } else {
     $display = new EnglishDisplay();
     $display->show($result);
     }
     }
     

     View Slide

160. class JankenGame
     {
     :
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     $display = new JapaneseDisplay();
     $display->show($result);
     } else {
     $display = new EnglishDisplay();
     $display->show($result);
     }
     }
     

     View Slide

161. class JankenGame
     {
     :
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     $display = new JapaneseDisplay();
     } else {
     $display = new EnglishDisplay();
     }
     $display->show($result);
     }
     

     View Slide

162. class JankenGame
     {
     :
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     $display = new JapaneseDisplay();
     } else {
     $display = new EnglishDisplay();
     }
     $display->show($result);
     }
     

     View Slide

163. class JankenGame
     {
     :
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     $display = new JapaneseDisplay();
     } else {
     $display = new EnglishDisplay();
     }
     $display->show($result);
     }
     

     View Slide

164. class JankenGame
     {
     :
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     $display = new JapaneseDisplay();
     } else {
     $display = new EnglishDisplay();
     }
     $display->show($result);
     }
     

     View Slide

165. class JankenGame
     {
     :
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     $display = new JapaneseDisplay();
     } else {
     $display = new EnglishDisplay();
     }
     $display->show($result);
     }
     

     View Slide

166. class JankenGame
     {
     :
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     $display = new JapaneseDisplay();
     } else {
     $display = new EnglishDisplay();
     }
     $display->show($result);
     }
     

     View Slide

167. class JankenGame
     {
     :
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     $display = new JapaneseDisplay();
     } else {
     $display = new EnglishDisplay();
     }
     $display->show($result);
     }
     class JapaneseDisplay {
     function show(int $result) {
     if ($result === 1) {
     echo "勝ち";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "負け";
     }
     }
     }
     

     View Slide

168. class JankenGame
     {
     :
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     $display = new JapaneseDisplay();
     } else {
     $display = new EnglishDisplay();
     }
     $display->show($result);
     }
     

     View Slide

169. class JankenGame
     {
     :
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     $display = new JapaneseDisplay();
     } else {
     $display = new EnglishDisplay();
     }
     $display->show($result);
     }
     class EnglishDisplay {
     function show(int $result) {
     if ($result === 1) {
     echo "win";
     } else if ($result === 0) {
     echo "draw";
     } else {
     echo "lose";
     }
     }
     }
     

     View Slide

170. class JankenGame
     {
     function play(int $leftHand, int $rightHand, string $lang)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result, $lang);
     }
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     $display = new JapaneseDisplay();
     } else {
     $display = new EnglishDisplay();
     }
     $display->show($result);
     }
     

     View Slide

171. class JankenGame
     {
     function play(int $leftHand, int $rightHand, string $lang)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result, $lang);
     }
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     $display = new JapaneseDisplay();
     } else {
     $display = new EnglishDisplay();
     }
     $display->show($result);
     }
     

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172. class JankenGame
     {
     function play(int $leftHand, int $rightHand, string $lang)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result, $lang);
     }
     function showResult(int $result, string $lang)
     {
     if ($lang === "ja") {
     $display = new JapaneseDisplay();
     } else {
     $display = new EnglishDisplay();
     }
     $display->show($result);
     }
     

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173. class JankenGame
     {
     function play(int $leftHand, int $rightHand, string $lang)
     {
     $result = $this->judge($leftHand, $rightHand);
     $display = $this->getDisplay($lang);
     $display->show($result);
     }
     function getDisplay(string $lang)
     {
     if ($lang === "ja") {
     return new JapaneseDisplay();
     } else {
     return new EnglishDisplay();
     }
     }
     

     View Slide

174. class JankenGame
     {
     function play(int $leftHand, int $rightHand, string $lang)
     {
     $result = $this->judge($leftHand, $rightHand);
     $display = $this->getDisplay($lang);
     $display->show($result);
     }
     function getDisplay(string $lang)
     {
     if ($lang === "ja") {
     return new JapaneseDisplay();
     } else {
     return new EnglishDisplay();
     }
     }
     

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175. class JankenGame
     {
     function play(int $leftHand, int $rightHand, string $lang)
     {
     $result = $this->judge($leftHand, $rightHand);
     $display = $this->getDisplay($lang);
     $display->show($result);
     }
     function getDisplay(string $lang)
     {
     if ($lang === "ja") {
     return new JapaneseDisplay();
     } else {
     return new EnglishDisplay();
     }
     }
     

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176. class JankenGame
     {
     function play(int $leftHand, int $rightHand, string $lang)
     {
     $result = $this->judge($leftHand, $rightHand);
     $display = $this->getDisplay($lang);
     $display->show($result);
     }
     function getDisplay(string $lang)
     {
     if ($lang === "ja") {
     return new JapaneseDisplay();
     } else {
     return new EnglishDisplay();
     }
     }
     

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177. class JankenGame
     {
     function play(int $leftHand, int $rightHand, string $lang)
     {
     $result = $this->judge($leftHand, $rightHand);
     $display = $this->getDisplay($lang);
     $display->show($result);
     }
     function getDisplay(string $lang)
     {
     if ($lang === "ja") {
     return new JapaneseDisplay();
     } else {
     return new EnglishDisplay();
     }
     }
     

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178. class JankenGame
     {
     function play(int $leftHand, int $rightHand, string $lang)
     {
     $result = $this->judge($leftHand, $rightHand);
     $display = $this->getDisplay($lang);
     $display->show($result);
     }
     function getDisplay(string $lang)
     {
     if ($lang === "ja") {
     return new JapaneseDisplay();
     } else {
     return new EnglishDisplay();
     }
     }
     

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179. View Slide

180. class JankenGame
     {
     function play(int $leftHand, int $rightHand, string $lang)
     {
     $result = $this->judge($leftHand, $rightHand);
     $display = $this->getDisplay($lang);
     $display->show($result);
     }
     function getDisplay(string $lang)
     {
     if ($lang === "ja") {
     return new JapaneseDisplay();
     } else {
     return new EnglishDisplay();
     }
     }
     

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181. class JankenGame
     {
     function play(int $leftHand, int $rightHand, string $lang)
     {
     $result = $this->judge($leftHand, $rightHand);
     $display = $this->getDisplay($lang);
     $display->show($result);
     }
     function getDisplay(string $lang)
     {
     if ($lang === "ja") {
     return new JapaneseDisplay();
     } else {
     return new EnglishDisplay();
     }
     }
     

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182. class JankenGame
     {
     function play(int $leftHand, int $rightHand, string $lang)
     {
     $result = $this->judge($leftHand, $rightHand);
     $display = $this->getDisplay($lang);
     $display->show($result);
     }
     function getDisplay(string $lang)
     {
     if ($lang === "ja") {
     return new JapaneseDisplay();
     } else {
     return new EnglishDisplay();
     }
     }
     

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183. class JankenGame
     {
     function play(int $leftHand, int $rightHand, string $lang)
     {
     $result = $this->judge($leftHand, $rightHand);
     $display = $this->getDisplay($lang);
     $display->show($result);
     }
     function getDisplay(string $lang)
     {
     if ($lang === "ja") {
     return new JapaneseDisplay();
     } else {
     return new EnglishDisplay();
     }
     }
     

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184. class JankenGame
     {
     function __construct($display)
     {
     $this->display = $display;
     }
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->display->show($result);
     }
     

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185. class JankenGame
     {
     function __construct($display)
     {
     $this->display = $display;
     }
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->display->show($result);
     }
     

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186. class JankenGame
     {
     function __construct($display)
     {
     $this->display = $display;
     }
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->display->show($result);
     }
     $display = new JapaneseDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     

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187. class JankenGame
     {
     function __construct($display)
     {
     $this->display = $display;
     }
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->display->show($result);
     }
     $display = new JapaneseDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     

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188. class JankenGame
     {
     function __construct($display)
     {
     $this->display = $display;
     }
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->display->show($result);
     }
     $display = new JapaneseDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     

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189. class JankenGame
     {
     function __construct($display)
     {
     $this->display = $display;
     }
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->display->show($result);
     }
     $display = new JapaneseDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     

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190. class JankenGame
     {
     function __construct($display)
     {
     $this->display = $display;
     }
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->display->show($result);
     }
     $display = new JapaneseDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     

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191. class JankenGame
     {
     function __construct($display)
     {
     $this->display = $display;
     }
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->display->show($result);
     }
     $display = new JapaneseDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     

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192. class JankenGame
     {
     function __construct($display)
     {
     $this->display = $display;
     }
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->display->show($result);
     }
     $display = new JapaneseDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     

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193. class JankenGame
     {
     function __construct($display)
     {
     $this->display = $display;
     }
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->display->show($result);
     }
     $display = new JapaneseDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     

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194. class JankenGame
     {
     function __construct($display)
     {
     $this->display = $display;
     }
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->display->show($result);
     }
     $display = new JapaneseDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     

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195. $display = new JapaneseDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     $display = new EnglishDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     $display = new ChineseDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     

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196. $display = new JapaneseDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     $display = new EnglishDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     $display = new ChineseDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     

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197. $display = new JapaneseDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     $display = new EnglishDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     $display = new ChineseDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     

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198. class JankenGame
     {
     function __construct($display)
     {
     $this->display = $display;
     }
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand
     $this->display->show($result);
     }
     $display = new JapaneseDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     $display = new EnglishDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     $display = new ChineseDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     

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199. class JankenGame
     {
     function __construct($display)
     {
     $this->display = $display;
     }
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand
     $this->display->show($result);
     }
     $display = new JapaneseDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     $display = new EnglishDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     $display = new ChineseDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     

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200. View Slide

201. class JankenGame
     {
     function __construct($display)
     {
     $this->display = $display;
     }
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand
     $this->display->show($result);
     }
     $display = new JapaneseDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     $display = new EnglishDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     $display = new ChineseDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     

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202. class JankenGame
     {
     function __construct($display)
     {
     $this->display = $display;
     }
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand
     $this->display->show($result);
     }
     $display = new JapaneseDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     $display = new EnglishDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     $display = new ChineseDisplay();
     $game = new JankenGame($display);
     $game->play(1, 2);
     

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203. class JapaneseDisplay
     {
     function show(int $result)
     {
     if ($result === 1) {
     echo "勝ち";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "負け";
     }
     }
     }
     class EnglishDisplay
     {
     function show(int $result)
     {
     if ($result === 1) {
     echo "win";
     } else if ($result === 0) {
     echo "draw";
     } else {
     echo "lose";
     }
     }
     }
     

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204. class JapaneseDisplay
     {
     function show(int $result)
     {
     if ($result === 1) {
     echo "勝ち";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "負け";
     }
     }
     }
     class EnglishDisplay
     {
     function show(int $result)
     {
     if ($result === 1) {
     echo "win";
     } else if ($result === 0) {
     echo "draw";
     } else {
     echo "lose";
     }
     }
     }
     

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205. interface DisplayInterface {
     function show(int $result);
     }
     

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206. class JapaneseDisplay
     implements DisplayInterface
     {
     function show(int $result)
     {
     if ($result === 1) {
     echo "勝ち";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "負け";
     }
     }
     }
     class EnglishDisplay
     implements DisplayInterface
     {
     function show(int $result)
     {
     if ($result === 1) {
     echo "win";
     } else if ($result === 0) {
     echo "draw";
     } else {
     echo "lose";
     }
     }
     }
     

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207. class JapaneseDisplay
     implements DisplayInterface
     {
     function show(int $result)
     {
     if ($result === 1) {
     echo "勝ち";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "負け";
     }
     }
     }
     class EnglishDisplay
     implements DisplayInterface
     {
     function show(int $result)
     {
     if ($result === 1) {
     echo "win";
     } else if ($result === 0) {
     echo "draw";
     } else {
     echo "lose";
     }
     }
     }
     

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208. class JapaneseDisplay
     implements DisplayInterface
     {
     function show(int $result)
     {
     if ($result === 1) {
     echo "勝ち";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "負け";
     }
     }
     }
     class EnglishDisplay
     implements DisplayInterface
     {
     function show(int $result)
     {
     if ($result === 1) {
     echo "win";
     } else if ($result === 0) {
     echo "draw";
     } else {
     echo "lose";
     }
     }
     }
     

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209. View Slide

210. View Slide

211. OOP
     TIPS
     

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226. View Slide

227. class JankenGame
     {
     function __construct($display, $resultGateWay)
     {
     $this->display = $display;
     $this->resultGateWay = $resultGateWay;
     }
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->display->show($result);
     $this->resultGateWay->save($leftHand, $rightHand, $result);
     }
     :
     

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228. class JankenGame
     {
     function __construct($display, $resultGateWay)
     {
     $this->display = $display;
     $this->resultGateWay = $resultGateWay;
     }
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->display->show($result);
     $this->resultGateWay->save($leftHand, $rightHand, $result);
     }
     :
     

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229. interface ResultGateWayInterface
     {
     function save(int $leftHand, int $rightHand, int $result);
     }
     

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230. class DebugResultGateWay implements ResultGateWayInterface
     {
     function save(int $leftHand, int $rightHand, int $result)
     {
     echo "leftHand:" . $leftHand
     . ",rightHand:" . $rightHand
     . ",result:" . $result;
     }
     }
     class ProductionResultGateWay implements ResultGateWayInterface
     {
     function save(int $leftHand, int $rightHand, int $result)
     {
     // ... save to database
     :
     }
     }
     

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231. OOP
     TIPS
     

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232. View Slide

233. class JapaneseDisplay
     implements DisplayInterface
     {
     function show(int $result)
     {
     if ($result === 1) {
     echo "勝ち";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "負け";
     }
     }
     }
     class JankenGame
     {
     function __construct($display)
     {
     $this->display = $display;
     }
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->display->show($result);
     }
     :
     }
     

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234. class JapaneseDisplay
     implements DisplayInterface
     {
     function show(int $result)
     {
     if ($result === 1) {
     echo "勝ち";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "負け";
     }
     }
     }
     class JankenGame
     {
     function __construct($display)
     {
     $this->display = $display;
     }
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->display->show($result);
     }
     :
     }
     

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235. class JapaneseDisplay
     implements DisplayInterface
     {
     function show(int $result)
     {
     if ($result === 1) {
     echo "勝ち";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "負け";
     }
     }
     }
     class JankenGame
     {
     function __construct($display)
     {
     $this->display = $display;
     }
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->display->show($result);
     }
     :
     }
     

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236. class JapaneseDisplay
     implements DisplayInterface
     {
     function show(int $result)
     {
     if ($result === 1) {
     echo "勝ち";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "負け";
     }
     }
     }
     class JankenGame
     {
     function __construct($display)
     {
     $this->display = $display;
     }
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->display->show($result);
     }
     :
     }
     

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237. View Slide

238. View Slide

239. class JapaneseDisplay
     implements DisplayInterface
     {
     function show(int $result)
     {
     if ($result === 1) {
     echo "勝ち";
     } else if ($result === 0) {
     echo "引き分け";
     } else {
     echo "負け";
     }
     }
     }
     class JankenGame
     {
     function __construct($display)
     {
     $this->display = $display;
     }
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->display->show($result);
     }
     :
     }
     

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240. interface DisplayInterface
     {
     function win();
     function draw();
     function lose();
     }
     class JapaneseDisplay implements DisplayInterface
     {
     function win()
     {
     echo "勝ち";
     }
     function draw()
     {
     echo "引き分け";
     }
     function lose()
     {
     echo "負け";
     }
     }
     

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241. class JankenGame
     {
     function __construct($display)
     {
     $this->display = $display;
     }
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result);
     }
     function showResult(int $result)
     {
     if ($result === 1) {
     $this->display->win();
     } else if ($result === 0) {
     $this->display->draw();
     } else {
     $this->display->lose();
     }
     }
     :
     }
     interface DisplayInterface
     {
     function win();
     function draw();
     function lose();
     }
     

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242. class JankenGame
     {
     function __construct($display)
     {
     $this->display = $display;
     }
     function play(int $leftHand, int $rightHand)
     {
     $result = $this->judge($leftHand, $rightHand);
     $this->showResult($result);
     }
     function showResult(int $result)
     {
     if ($result === 1) {
     $this->display->win();
     } else if ($result === 0) {
     $this->display->draw();
     } else {
     $this->display->lose();
     }
     }
     :
     }
     interface DisplayInterface
     {
     function win();
     function draw();
     function lose();
     }
     

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243. interface DisplayInterface
     {
     function win();
     function draw();
     function lose();
     }
     class JapaneseDisplay implements DisplayInterface
     {
     function win()
     {
     echo "勝ち";
     }
     function draw()
     {
     echo "引き分け";
     }
     function lose()
     {
     echo "負け";
     }
     }
     

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257. class ModelNumber {
     private string $model;
     private string $branch;
     private string $lot;
     /**
     * ModelNumber constructor.
     */
     public function __construct(string $model, string $branch, string $lot)
     {
     $this->model = $model;
     $this->branch = $branch;
     $this->lot = $lot;
     }
     public function toString() {
     return $this->model . "-" . $this->branch . "-" . $this->lot;
     }
     }
     

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258. class ModelNumber {
     private string $model;
     private string $branch;
     private string $lot;
     /**
     * ModelNumber constructor.
     */
     public function __construct(string $model, string $branch, string $lot)
     {
     $this->model = $model;
     $this->branch = $branch;
     $this->lot = $lot;
     }
     public function toString() {
     return $this->model . "-" . $this->branch . "-" . $this->lot;
     }
     }
     

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259. class ModelNumber {
     private string $model;
     private string $branch;
     private string $lot;
     /**
     * ModelNumber constructor.
     */
     public function __construct(string $model, string $branch, string $lot)
     {
     $this->model = $model;
     $this->branch = $branch;
     $this->lot = $lot;
     }
     public function toString() {
     return $this->model . "-" . $this->branch . "-" . $this->lot;
     }
     }
     

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