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                $obj1 = new A(); $obj1->p1 = 11; $obj2 = $obj1; //值傳遞 //則,現在有幾個對象?——1個對象! 當然:$obj3 = & $obj1; 結果,還是一個對象! 對象的克隆語法,就是用于將一個對象“制作”雙份的語法,類似之前普通數據的“值傳遞”; 語法:$obj2 = clone $obj1; //這樣,就有一個跟$obj1完全一樣的新的對象。 禁止克隆:private \_\_clone(){}; 1, 克隆的時候,需不需要執行構造方法? 不會,因為克隆不是實例化,所以不需要執行構造方法! 屬不屬于類的一個實例? 屬于
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