Home php教程 php手册 一个完整的PHP类包含的七种语法说明

一个完整的PHP类包含的七种语法说明

Jun 06, 2016 pm 08:03 PM
php class grammar

这篇文章主要介绍了一个完整的PHP类包含的七种语法说明,这些语法包括属性、静态属性、方法、静态方法、类常量、构造函数、析构函数,本文一一给代码示例和详细注

类中的七种语法说明

-属性
-静态属性
-方法
-静态方法
-类常量
-构造函数
-析构函数

'; } // 静态方法 public static function static_stuFunction() { echo 'static_function','
'; } // 构造函数 创建对象时自动调用 public function __construct($stu_name) { $this->stu_name = $stu_name; echo '__construct','
'; } // 析构函数 销毁对象时自动调用 public function __destruct() { echo '__destruct','
'; } } // 实例化类对象 $object = new Student('Tom'); // 对象调用属性 echo $object->stu_name,'
'; // 对象调用静态属性 echo $object::$stu_num,'
'; // 类调用静态属性 echo Student::$stu_num,'
'; // 使用对象分别调用方法和静态方法 $object->stuFunction(); $object->static_stuFunction(); $object::stuFunction(); $object::static_stuFunction(); // 使用类分别调用方法和静态方法 Student::stuFunction(); Student::static_stuFunction(); // 类调用类常量 echo Student::STUDENT,'
';

总结:

对象可以调用属性和静态属性,,类只能调用静态属性。

对象可以调用方法和静态方法,类可以调用方法和静态方法。

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