質問編集履歴
2
コードの追加
test
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File without changes
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test
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@@ -154,4 +154,8 @@
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154
154
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155
155
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156
156
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157
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-
var_dump($obj->setA('多相性 ')->execute()->getA());
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157
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+
var_dump($obj->setA('多相性 ')->execute()->getA());
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158
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159
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コード
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160
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161
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```
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1
コードの追加
test
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File without changes
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test
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@@ -11,3 +11,147 @@
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11
11
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12
12
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13
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どなたか教えていただきたいです。
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14
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+
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15
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16
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17
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※追記
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18
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19
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20
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21
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上司からヒントをいただきましたが、まだコードの勉強はしていないのでわからないです・・・
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22
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23
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どういうことでしょうか。
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24
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25
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26
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27
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```
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29
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<?php
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30
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+
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31
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+
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32
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33
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+
abstract class Parent1
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34
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35
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{
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36
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+
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37
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+
protected $a = '';
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38
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+
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39
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+
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40
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+
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41
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+
public function setA($a)
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42
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+
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43
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+
{
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44
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+
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45
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+
$this->a = $a;
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46
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+
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47
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48
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49
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+
return $this;
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50
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+
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51
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}
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52
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+
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53
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+
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54
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+
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55
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+
public function getA()
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56
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+
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57
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+
{
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58
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+
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59
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+
return $this->a;
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60
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+
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61
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+
}
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62
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+
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63
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64
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65
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+
abstract public function execute();
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66
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67
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68
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+
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69
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+
}
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70
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+
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71
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+
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72
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+
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73
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+
class Child1 extends Parent1
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74
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+
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75
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+
{
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76
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+
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77
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+
public function execute()
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78
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+
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79
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+
{
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80
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+
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81
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+
$this->a .= ' Child1';
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82
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+
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83
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+
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84
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+
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85
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+
return $this;
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86
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+
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87
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+
}
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88
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+
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89
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+
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90
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+
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91
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+
}
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92
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+
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93
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+
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94
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+
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95
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+
class Child2 extends Parent1
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96
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+
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97
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+
{
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98
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+
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99
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+
public function execute()
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|
100
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+
|
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101
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+
{
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102
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+
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103
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+
$this->a .= ' Child2';
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104
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+
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105
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+
|
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106
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+
|
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107
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+
return $this;
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108
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+
|
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109
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+
}
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|
110
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+
|
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111
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+
|
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112
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+
|
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113
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+
}
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|
114
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+
|
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115
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+
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116
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+
|
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117
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+
// 継承
|
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118
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+
|
|
119
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+
$obj1 = new Child1();
|
|
120
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+
|
|
121
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+
$obj2 = new Child2();
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122
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+
|
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123
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+
var_dump($obj1->setA('obj1')->execute()->getA());
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124
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+
|
|
125
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+
var_dump($obj2->setA('obj2')->execute()->getA());
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|
126
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+
|
|
127
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+
|
|
128
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+
|
|
129
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+
// ポリモーフィズム
|
|
130
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+
|
|
131
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+
$input = rand(1, 2);
|
|
132
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+
|
|
133
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+
$obj = null;
|
|
134
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+
|
|
135
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+
switch ($input) {
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|
136
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+
|
|
137
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+
case 1:
|
|
138
|
+
|
|
139
|
+
$obj = new Child1();
|
|
140
|
+
|
|
141
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+
break;
|
|
142
|
+
|
|
143
|
+
case 2:
|
|
144
|
+
|
|
145
|
+
$obj = new Child2();
|
|
146
|
+
|
|
147
|
+
break;
|
|
148
|
+
|
|
149
|
+
default:
|
|
150
|
+
|
|
151
|
+
break;
|
|
152
|
+
|
|
153
|
+
}
|
|
154
|
+
|
|
155
|
+
|
|
156
|
+
|
|
157
|
+
var_dump($obj->setA('多相性 ')->execute()->getA());```
|