>這是一個基本示例:
>此代碼定義具有屬性<code class="php"><?php class Dog { public $name; public $breed; public function __construct($name, $breed) { $this->name = $name; $this->breed = $breed; } public function bark() { echo "Woof! My name is " . $this->name . ".\n"; } } // Create an object (instance) of the Dog class $myDog = new Dog("Buddy", "Golden Retriever"); // Access properties and methods echo $myDog->name . " is a " . $myDog->breed . ".\n"; $myDog->bark(); ?></code>> and
的A Dog
類,以及方法name
>。 breed
方法是一種特殊的構造函數,當創建新的bark()
對象時,它會自動調用。 然後,我們創建一個對象__construct()
並訪問其屬性和方法。 請注意,Dog
的使用來參考當前對象的屬性和類中的方法。 Visibility modifiers like $myDog
, $this
, and public
control access to class members.private
protected
What are the key differences between classes and objects in PHP 7?
public
,private
,protected
,extends
senasinance:<code class="php"><?php class Dog { public $name; public $breed; public function __construct($name, $breed) { $this->name = $name; $this->breed = $breed; } public function bark() { echo "Woof! My name is " . $this->name . ".\n"; } } // Create an object (instance) of the Dog class $myDog = new Dog("Buddy", "Golden Retriever"); // Access properties and methods echo $myDog->name . " is a " . $myDog->breed . ".\n"; $myDog->bark(); ?></code>>示例演示遺傳和多態性:
>在創建php 7?
public
>成員應用於保護內部數據。 private
protected
private
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