回答編集履歴
2
修正
answer
CHANGED
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@@ -1,6 +1,6 @@
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1
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newのときに第２引数にt/f送るだけでは
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2
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3
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-
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3
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+
追記
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4
4
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```php
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5
5
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<?php
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6
6
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class Item {
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1
修正
answer
CHANGED
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@@ -1,1 +1,26 @@
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1
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-
newのときに第２引数にt/f送るだけでは
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1
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+
newのときに第２引数にt/f送るだけでは
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2
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+
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3
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4
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```php
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5
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<?php
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6
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class Item {
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7
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private $taxRate = 0.08;
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8
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//public $price; //コメントアウトはずす
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9
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//public $included = false;//コメントアウトはずす
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10
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11
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public function __construct ( int $price, $included = false ) {
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12
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$this->price = $price;
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13
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$this->included = $included;
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14
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}
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15
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16
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public function tax():int {
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17
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if ( $included ) { // true = 内税 $this->included に変更
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18
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return $this->price * $this->taxRate;
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19
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} else { // false = 外税
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20
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return $this->price + ( $this->price * $this->taxRate );
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21
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}
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22
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}
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23
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}
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24
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```
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25
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+
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26
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+
[PHPマニュアル](https://www.php.net/manual/ja/language.oop5.properties.php)も参考にしてください。
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