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                ### __set() 為不可方法的屬性賦值: __set() 一旦定義了__set()魔術方法,為不可訪問的屬性賦值的時候,就會自動的執行該方法,此時,處理權就交給用戶自己了! 該魔術方法需要兩個參數: 一個是該不可訪問的屬性的屬性名 一個是該不可訪問的屬性的值 ### 默認行為 ~~~ class Person{ public $name; public $age; } $p = new Person(); $p->age = 20; $p->name = "jack"; $p->height = 190; ~~~ ~~~ object(Person)#1 (2) { ["name"]=> string(4) "jack" ["age"]=> int(20) } //為一個對象不存在的屬性賦值相當于無效 ~~~ ### 對__set進行重寫 ~~~ class Person{ public $name; public $age; public function __set($name, $value) { $this->$name =$value; } } $p = new Person(); $p->age = 20; $p->name = "jack"; $p->height = 190; var_dump($p); ~~~ ~~~ object(Person)#1 (3) { ["name"]=> string(4) "jack" ["age"]=> int(20) ["height"]=> int(190) } //賦值成功 ~~~
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